Villain is like 57/39/17, Fto3Bet 0/5 over 60samples.

preflop : Maybe should be much bigger.
flop : range bet w 30%. But cb-size could be bigger exploitatively, vs this player.
turn : Faced halfish donk then hero 33% raise and flat his min 3bet. I thought that his xc-donk half range is mostly marginal hands like naked FD/pair + SD type hands. Yes he could have some straight sometimes for sure. So I chose that small raise size vs his donk. Big raise size would isolate his strong combos overly.

Questions:
1. What do you think about my assumption, "xc-donk half" line is full of marginals.
2. My play was just based on six-sense at the time. Do you have any MDA-based data on this spot?

Thanks :)