I'm not understanding to fold pre. I can see it in some cases but there's a small 3bet with the original raiser also likely to come along 100bb effective with the 3bettor. If hero opened then yeah fold to the 3bet if it's "normal" size but we usually get another player (shorty...I know) and have what seems to be good implied odds. I guess if we view this small 3bet as a sign that he's begging the original raiser to call then yeah I can see a case. I don't know I'd have to try some math stuff I could be way off.