Was in Vegas this past week....and played in this tourney. Good structure, slowish blind levels (40 mins) so no need to spaz early to try and chip up.
I had spent the first 2 rounds playing fairly TAG-ish, only getting involved with premiums and other suited connector-ish hands in position. Haven't shown down anything out of the norm. 2 Villans in hand were older gentlemen...but I'd far from classify them as 'Nitty'. Villan 1 (2 on my left) had been opening & flatting a ton with speculative hands. I'd already 3-bet him once to have him flat and then donk-shove a flop on me...and he'd won a couple mid-sized pots showing down K8suited and QToff. Villan 2 (direct across from table) was in his late 60's, but knew the staff & dealers...and when we sat down, one dealer asked him why he hadn't been around of late and he said "I've been playing everyday over at the B...your 5-10NL game hasn't been running as frequently". I've also seen him open & flat a bunch early and call down with less than premiums.
Start of level 3 (100/200 no ante)...effective stacks...
Hero (MP): ~11,000
Villan 1 (SB): ~17,000
Villan 2 (UTG+1): ~15,000
Villan 2 opens to 550, folds to hero who holds K

K

...and I 3bet to 1,500. V1 flats and V2 (orig raiser) calls.
Flop (~4,700): T

5

3
Villan 1 donks for 2,800
Villan 2 tanks for about a minute and then shoves
Hero ???
My gut at the time said that this was a pretty easy fold, but I then got to thinking that V2 could possibly be shoving a flush draw or a smaller overpair than mine. Figured V1 may possibly call with something like KT as he's shown he will do by earlier actions.
Is this just a simply fold at this stage....or am I being way too nitty?
Thoughts & commentary appreciated!
SB