Hmmm… I used 75mcg total yesterday of 91. Felt effects at 37.5, went hyper silly and happy at 75. I’d go for 12.5 with you… or less. 7.5 even. You’re pretty sensitive.
P91 was silly for me. Totally happy, and definitely keyed to other people. There was an intense desire to be with others, and the communal happiness was pretty intense. There was no enlightened feeling though. 
Much more silly than that!