I'v been playing around with both flatting and 3betting disconnected low double pairs. To my knowledge (and please correct me if I'm wrong) given gto ranges we're only 3betting 20% of our ds vs late position. I've been flatting btn only and 3betting all double pairs (ds, ss and rr) from all other spots to get hu. My thought process is flatting, even ip, can get me into "fake" coolers multiway.

Guess my main question is , at micro where you're playing more multiway, would it be higher EV to 3b get these hu or flat ipp especially btn? Not so much worried how playing these affects either of my range given population isn't paying too much attention. Thanks!