You need to evaluate , is he the kind of player to raise with flush / open ended st draws or only with Sets or 2 pair? Usually older gentlemen > 50 only call with draws and younger < 30 raise.

Based on the description as a Rock, I don't think we can call the river any Tx , 78 combo beats. I am surprised by the lead on the turn rather than check? . River, Only thing we can beat is a missed FD and i think against his range we need at least 50% equity to make this call profitable , (considering Tx, hh possible combos, 78,99,66) we have around 30% or maybe even less.

Based on your description you have to fold I think.....

Am also slightly surprised by the turn lead, after being x/r by this guy. If he is weak and straightforward you could check and expect him to bet his Ten (which is what he probably has)

Yea I agree that my lead on the turn was a pretty big blunder. I thought for a while on this hand and folded. Villan showed 79hearts but I think long term, its most likely a profitable to fold in this spot.

The only thing I think certainly was a mistake in this hand was the sizing of our preflop raise. 20 would have been better. For 15 were just going to get the snowball call effect too often and I don't think we want to play a 4 way hand with JJ.

Def agree to make it bigger preflop oops in these type of cash games. Like you mentioned people are defending their limp regardless. Push that preflop edge.

I think the bet on the turn as played actually gives you some more information which makes his hand look more like hearts. If he does have a set or like top two pair and you bet $50 into $188 he raises most of the time. Plus on the river you need to be corrected way less then 50% as someone mentioned above. $288 + $120 = $408. So your putting in $120 to win $408 which makes this call very profitable given his range.