I've hooked up with every one of the beta quadra types. Best sex was with the NFs lol. The STs were way too rough. Never got into a relationship with any of them though, because I never had much in common with them. I think one of the EIEs wanted something more after hooking up, but he wasn't very respectful.

IEIs can seem like nice, polite guys, but for a lot of them it's just a way of getting what they want lol. The one I knew was really reliable for sex but he always gave some reason for why he didn't want a relationship. I think he wound up with some muscle dude eventually lol.