200NL - flop 2nd nuts - bet sizing question

[osc11]

i think 30 is the perfect raise. was what i thought before i read 1st reply. if the turn is a good card for you , there is now more money in the pot 2 jam the turn. then no matter what draw he has u only have 2 avoid 1 card. i like building pots with good hands. i like 2 get value and also if the turn is a bad carf for you u only invested a small amount and can fold