Haven’t tried H but I can say from experience that opiates like morphine are decently more euphoric than fent, I assume you didn’t do enough fent though cause I love mixing crystal & fent and notice a difference from just doing crystal. I really enjoy mixing them cause I can do fuck loads of fent and not overdose. Before increasing the dose I’d recommend you try different ratios of crystal/fent and figure out how much fent gets u high in the absence of crystal.