The blow dryer is unnecessary unless your extracting in sub-zero ambient temperature!
How much is "too much" on that 1st pull? In SWIM's experience, up to 4L of naphtha can be FPed - just be sure the freezer is COLD!, and give it 24 hours.
Noman's TEK is great - she got >1% yield, all said and done. Not a record breaker, but good. 5 pulls at least.
IF SWIY is confident in his previous water wash and MgSO4 dry, then slightly off white is fine - when dried COMPLETELY and it smells of indole, not solvent.
"Canary spice is nice, crystal clear is dear."
Re-xing is fun and gives a purer product.
Do not under-estimate 25mg.
SWIM found a threshold at ~10 mg then went to 20. She was glad she took this step-wise approach. Not the only way to go, just for her it was good.
Fruitful journeys,
L
"The first principle is that you must not fool yourself, and you are the easiest person to fool." Richard P. Feynman