[RiverMustelid]

If he has an overpair here and you've failed to get stacks, this is a big mistake.

I probably push, but there is some non zero chance that an overpair folds to it.

I don't understand why you look for him to check/raise you on the flop when you say he is passive. Surely, either a check/raise, or a full sized donk aimed at getting stacks in with 3 streets of standard size betting are better?

I do make these non standard plays myself too sometimes, but wonder whether they really do me any favours.