Cheeto, I think you might be trying to reinvent a wheel that has already been perfected. With a simple solvent extraction of your greens you can reduce an once of greens to around 1-4 grams of really pure full spectrum extract depending on how good your greens are. So a QP would reduce to around 4-16 grams depending on your greens and their quality. SWIM has given 2 methods below for liquid solvent extract of cannabis that have both worked extremely well for SWIM to create extremely pure and clean honey oil. One uses butane as the solvent, the other ethanol. One can also use Hexane, but it is not recommended. Pure 99% Isopropyl alcohol can also be used instead of ethanol for the second extraction, but since ISO is poison and SWIM is not convinced it totally evaps from the final product, SWIM does not use ISO ever for extractions.
SWIM does butane extraction the following way. SWIM uses a Dewar Flask similar to this one (
http://www.coleparmer.com/catalog/product_view.asp?referred_id=778&sku=0376630) which allows SWIM to keep the butane very cold for longer extractions. Place all of the dried greens into the Dewar Flask about 3/4 of the way to the top. In order to fill this flask with greens with Butane you will need multiple large cans of good quality near zero impurities butane. Vector is great, colibri is also good, look for triple or 5x filtered and/or near zero impurities butane for the cleanest stuff. Vector comes in 320 ml cans and you will need 3-5 whole cans in order ti fill the Dewar Flask with liquid butane to do this extraction. The trick is to freeze everything in a fridge that can freeze ice cream hard - the Dewar Flask with the dried greens and as many cans of butane as you can fit. Let it all cool for at least 24-48 hours. Do the extraction outdoors when it is cool out, not hot and make sure there are no flames or sparks anywhere near as this part is extremely flammable. Wear protective gloves and glasses. Empty the butane into the Dewar Flask, it will be cold liquid and the vacuum of the Dewar Flask will keep that liquid butane cold for hours. Basically keep emptying cans of ice cold liquid butane into your greens until it just covers your greens. SWIMS Dewar is large and it takes 5 x 320ml cans to fill it above the greens. Never weighed it before but it must fit at least 3-4 ounces of greens at a time plus around 1600 ml of ice cold butane. Allow the butane to sit for at least one hour, SWIM guesses that you could allow it to sit for 3-4 hours, but imagines it might pick up additional waxes and turpines and chlorophyll that you do not want and would not add any additional dissolved THC and cannabinoids, so one hour works well for SWIM. After an hour pour all of the cold liquid butane through a good filter, SWIM uses a 25 micron water hash bag, and into a large glass bowl. Place this glass bowl into a pan or pot of hot water and allow the butane to boil and evaporate off. It might take one or two changes of hot water to fully evap all the liquid butane and leave behind a think bubbly goo. You are almost done at this point. Many people stop here, but there is lots of butane trapped in your honey oil at this point. The easiest way to release it is to add a little bit of ethanol, SWIM uses Everclear, and add it to this warm thick bubbly honey oil, not too much, but enough to turn it all into a liquid again. Then you simply double boiler it until the liquid reduces back into a thick oil. Once removed from the heat of the double boiler it should cool into a thick honey oil or perhaps even a shatter glass like a jolly rancher candy. This stuff smells and vaporizes amazingly well and a little goes a long way. Careful not to use too much when starting out as it is easy to overdose when you first start out with this extract. If it is too powerful, thin it out a bit with some good hash to form a jelly or roll some good greens in it for honey bud. Enjoy, this is great pure stuff.
*You can also use a glass tube (never use plastic or PVC!!!) for your dried greens and inject butane through the tube with a filter at the opposite end and collect the liquid into a glass bowl, but SWIM has found that while this works, it does not collect all of the goodies in your greens or in the overall amount that the Dewar Flask method uses. SWIM has found that the Flask collects on average 3-5 more grams per QP of greens than the glass tube butane extraction does. SWIM likes to get all SWIM can out of the greens and into a pure extract.
SWIM does ethanol extraction the following way. Swim uses Everclear 190 proof and uses heated epson salts to absorb the water and increase the overall % of ethanol. The trick here is to place your dried greens into a glass mason jar, pour the ethanol into the jar on top of the greens, cap it and shake the piss out of it for no more than 2 minutes. Immediately filter the liquid into another clean glass jar. You now have liquid cannabis extract or tincture. At this point you can leave it as a liquid and drink a few ml or add a few ml to a liquid and drink it - this is very much like making cannabis butter and eating it - you get a nice body high and it lasts a lot longer than smoking cannabis does typically. You can reduce this liquid by evaporation to make a really really strong tincture or green dragon. Or you can totally evaporate this liquid to create a very pure "hash" that is similar to BHO (Butane Honey Oil) that usually resembles shatter or amber glass or extremely think honey oil if done correctly with high quality greens. SWIM puts liquid into a nice round glass bowl and uses a double boiler to gently evap the liquid to reveal a nice thick oil that when dry is like jolly rancher consistency, pure shatter glass that vaporizes really nicely with a great aroma. SWIM likes saving a little tincture for green dragon when SWIM does not want to smoke and when SWIM does want to smoke a 1/2 gram of this shatter glass will get dozens of your friends really nicely blazed.
To perhaps answer one of your other questions, when you vap greens in a volcano or other bag type collection system and let it sit in the bag for a while, a lot of the vapor will condense onto the sides of the bag within 24 hours, loosing potency from the vapor. SWIM has never tried to collect the condensed vapor and tried to revaporize...what would the point be really, it was already vapor before and would only loose potency and taste and aroma, it would not gain anything. Try the butane or ethanol extraction with a little bit of your good stuff and see how you like it. It gets rid of lots of bad stuff and makes the final product very small and easier to hide. SWIM has even turned some oil back into liquid and traveled with it in a sealed glass bottle, then evaped it upon arrival and had lots of great honey oil to share with friends with not a clue from travel security that anything passed through their system undetected. Put it in checked baggage, not carry on, as they throw away almost all liquid these days in many places.
Good luck and let us know what you come up with and what you thought of it.