If you are at one with the shrooms you will love 4-AcO-DMT, 25 mg should be fine although my experience with it is limited to an 80mg oral dose and I am not experienced with any other dose
... this means that I saw things nobody is meant to see, I jest, but I mean it, this stuff is incredible. There is quite a bit of bodyload at an 80mg dose but relatively little compared to the magnitude of the Experience. I would certainly not recommend such a heavy amount especially as a first-timer. I did the fumarate. I hope to try this compound again, this was over two years ago, but have yet to venture back. I am curious to try very small doses, less than 10mg even, and combine with cannabis perhaps to see what good can be achieved at this low range. I think the conversion of psilacetin to psilocin is more likely to occur more fully if you were to swallow the compound.
