[andyfox]

I find when a guy is losing at stakes that might be slightly uncomfortable for him, the indecision about raising or calling is not because the guy is undecided about slowplaying, but rather because he's undecided about whether his hand actually merits a raise. So I'd be more inclined to put him on J-8s or Qh-Jh or somesuch than a set.

One should always consider raising, calling, and folding; only 3 decisions, a shame not to at least consider all three. But the indecision on your opponent's part, plus the fact that you slowplayed a hand which he would have no reasonable way to put you on, would have made me think he was weaker than he otherwise might be.