Advice on shroom trip

I have tripped on shooms about 4 or 5 times all were a mild or medium high. 2 of those were heroic doses (5g and 10g) but they were not heroic trip. In fact everytime I've done mushroom it was always less intense than I expected so either I have a natural tolerance or the shrooms were weak.

I have 7gs of penis envy because ofc I have heard they are really strong. I want a heroic does but I'm not sure of I should go for 5 or the full 7. On the one hand I don't want to be disappointed again on the other I don't want to have a bad trip though that being said I never had a bad trip on shrooms what do you guys think.

Also if it makes a difference I'll be doing this eyes closed with music.