1/2: I overbet shove in a spot I usually just call

[21CUP]

I would just call. Anything that calls your all in is ahead of you. If a tight SB is leading out into 3 people he could easily have a set. UTG probably has a King, maybe AK, and is scared to make a move against the SB because he is tight.

I guess it could be good for your image, but the only hands I think that call you are sets or two pair.