ying Mescaline for the first time

first i have to mentione that im really well versed with psychadelics countless lsd trips many shroom trips and some dmt experiences also much experience with 2cb. i have taken all these drugs at heroic doses exept dmt i did not quite breaktrough, not that i have not tried yet i was just was to incompetend.

i will have mescaline in its pure form and want to take a heroic dose for my first time.

i dont have acces to much of it so i really want to experience it for my first time.

how much would you recommend me to take?

Thanks!