[danny8]

how many hands is the sample? if it really is tiny, like 10-20 then i dont think you can assume hes tight, basically a complete unknown.. if its 35+ even though obv the samples still tiny assuming hes somewhat tight seems reasonable.

first off i'd raise a little more pf, a possible tight player opeend UTG, its likely the only place you're going to get value from him so make it a bit larger ~$4

against a very tight range of AK, JJ+ you're a 60/40 favourite

what hands does a tight player call/shove over a cbet: AK, AA, KK, JJ

you're 50/50 vs that range, so betting and getting ai is never a mistake.

the only downside to betting is possibly folding out QQ and other crap he might have called pf with. downside to checking is letting QQ hit his 6outer. either option seems fine, i'd just mix it up but on the whole im betting

if his range is wider, say: AcAd,KK-TT,AQs+,KQs,AQo+ then betting becomes better than checking since theres more hands you beat and a couple GS's he might make a mistake by calling or shoving.

basically default is to cbet, but once you get a better idea of the range hes calling 3bets with then cehcking can be better. either way you should mix it up a little from time to time