[medaugh]

The check line is player dependent IMO. Reads would be helpful. I think you could value bet a quality player. If villan is a decent to fair player they most likely wouldn't have limped with K-anything UTG. They might play a smaller to mid PP depending on the table. (Using the same line of thinking you did with your suited connector) I would value bet this type of villan.

On the other hand if the villan is not a very good player, I like the check behind. This type of player would limp KQ, KJ, K10 etc. UTG