Tbf, just cause he showed KK doesn't MEAN bet/fold was the best river play. But I'm glad we got a result on that one and know overpairs were at least in his range to some degree (take a note, imo).
Well, I think if we go of initial reads of him being a tag I think in hindsight that bet/fold was probably the best sort of play vs him, or at the very least will be for the future. I had him pegged from the off, he likely 3bet JJ+ A,K purely based on his nittiest in general and 3betting range being so small.
It was just when he elected to call our raise on the turn, my range of
hands changed a bit for him; to maybe middle pairs because I couldn't really see him calling a raise on such a horrid turn card with any sort of over pairs and then insta though he was trapping so thought checking back the river was better but when I realise he showed down KK, I signed a bit...but I guess I can put him down to being a bad tag. I think it's quite good for future though at a table, it's quite a significant note.