I, too, had pulls that were very dark.
As usual, Cyb's Max Ion.
A variation on my part - I put 100g powdered MHRB into one extraction vessel, as opposed to my usual 50g powdered MHRB.
Secondly, this is a different batch of bark.
First picture, you can see how dark the Naphtha is.
But I believe you can also see how clear it is.
So I freeze-precipitated the first two pulls in one pan, then pulls 3-5 in a second pyrex.
After 36 hours, I still had lots and lots and lots of floaties, so I decanted them into a different jar.
So I have 3 'scrapes' of the two pans:
First and biggest 'scrape' is the first two pulls, something like 1.030g.
Second 'scrape' is pulls 3-5, about .3g.
Third 'scrape' is digging deep into each pyrex with the razor to get the remaining goo. About .060g.
I reduced the naphtha in the jar full of floaties and have begun cooling it, have to see how that turns out.
I will test soon, and see what happens.