How much torch powder is enough??

Hello all,
I've been having trouble knowing how much of dried cactus tissue (powder) is enough for a full trip. I've done cactus twice (twice as of last night), and have use one foot sections of san pedro cactus as one dose. I have no idea though how much dried grams that makes up. At an online store, they have it in 28g and 56g measurements. I'm also looking at using the peruvian torch strain to kick it up a notch. From one foot of pedro, I saw the typical melting visuals but not many closed eye visuals. The body and mind highs were incredible though, I just wish I could've gotten deeper. How would the 28g and 56g measurements of peruvian torch compare to what I've already experienced (my report is listed)? Thanks for your input.

Peace,
Steven

 

40-50 grams. You should do an IPA or A/B extraction (IPA if chemically challanged)