try like 40mg max first, 50mg on maoi hits you like the hand of god.
It realy slows down the whole experience, it wil lprobably feel at least 3 times as long, but you'll be able to open your eyes at some point and still find your room semi integrated with hyperspace.
Once I did it smokeing on my back, watching a chandelier, next thing I noticed, th eroom was gone, but the chandelier that had most of my focus, was still hanging there, along with its shadow wich was now alive.