Yup penis envy and albino penis envy (ape for short) are both exceptionally potent. I'd say 2 grams is the max being its you're first time. Assuming they are legitimate penis envy, even dried they should really look like dicks. If they don't, I'd stick with 2.5g or so. Unfortunately there's no way to know how potent they will be. Sometimes being right on the cusp of a a good psychedelic experience can be annoying, so it's hard to know exactly how to advise you best. But you've got a ton of good advice, and you seem to be taking it which is always good.