okay grass has too much fats and chlorophyll to go straight to base, we know this
A traditional a/b is tedious and wasteful... You make an acidified soup of your grass you use lots and lots and lots of solvent trying to defat large amounts of grass, then you basify and pull likely still ending up with some goo as a result.
Alternative 1:
B/A/B
Start by going straight to base, evap up the solvent for a fatty/chlorophyll goo product. Now you add acid water to the goo, and defat with just a tiny bit of solvent, then you can basify and pull for your product. You use much less solvent defatting a few grams of goo as opposed to hundreds of grams of grass. Simple economics, less wasted solvent = better way to go.
Example 1:
Make a grass tea, base with lye to ph 13. pull with xylene. Evap up xylene for goo. Dissolve goo in vinegar, Defat a couple times with a small amount of xylene. Base with lye to ph 13. pull into xylene and Evap off xylene for full spectrum freebase alks or pull into naptha and freezer precip for (theoretically) pure spice.
Alternative 2:
Salt
Instead of evapping your straight to base solvent you can salt out to acetates or fumerates, this has close to the same effect as doing an a/b without all the tedious defatting of large amounts of grass since the fats will stay in the solvent and the alks will migrate to the acid layer. You can then proceed to mini a/b on the alkaloid salts or just convert directly to freebase for a full spectrum product.
Example 2:
Make a grass tea, base with lye to ph 13. Pull with limonine. Combine limonine and pull a few times with vinegar or fasw. Evap off vinegar or fumeric water for goo or xtals respectively. You can then proceed to to the mini a/b from above for (theoretically) pure spice, or you can drytek the goo/xtals with sodium carbonate or lime and pull into acetone then evap the acetone for full spectum freebase or pull with naptha and freezer precip for (theoretically) pure spice.
As per eco-friendly tek:
Do a limtek basing with lime, pulling into limonine and salting to acetate with vinegar or fumerates with fumeric acid. Then do a sodium carbonate conversion in water. This will give a full spectrum freebase product however and other alks such as gramine will likely be present. (vegetable oil may be able to used in place of limonine here making it a true grocery store tek)
Hope that all makes sense