today I watched one of the coaching video from twitch
the situation was hero is CO with AKs
UTG limp and then Hero pot raise, then bb and utg(limper) call.

Flop board: K56 rainbow

both of them checks and hero half pot bet and they fold.
the coach says bet sizing is too small. he prefers 75% of the pot bet most of the time (or even bigger)
however, for me, there is no need to bet bigger, since board is dry.

I was taught that dry board-bet small/wet board-bet bigger
because dry board/ i don't need to protect my hand much and vice-versa for wet board

hm... in microstakes, i think we can bet bigger because bet sizing can't change fish's decision.
any idea?