Pot sized bet is too much to recommend post flop (referring to ypsieasts recommendation). You are probing here for information. theres a very good shot you are beaten. Why pay so much money to find out?

Harrington recommends between 1/3 & 1/2 pot for probe bets. I like to go up towards the 1/2 pot so as to mix them in with my continuation bets which start at 1/2 pot.

Probe, and fold to any resistance. A call of your probe is always tricky. I probably check/fold the turn to a caller.