Re: Questionable limp (Stud Hi)
 

With a live 5, J, and T draw I can easily make jacks up or trips being ahead of the potential 8's the better has. I put him on a flush draw, and holding his hearts I can safely make that call. On 5th it's a bet because I'm a favorite now.

Re: Questionable limp (Stud Hi)
 

I think 3rd is a fold given your kicker and the number of live overcards still left to act. I'm even tempted to fold 4th after calling on 3rd, which also argues for folding 3rd. 5th is a clear bet. A raise on 6th is also nice, as someone else said. If you raise 6th, check behind on the river unless you improve to a flush or better.