I think if you make a standard flop bet your opps actions will be less likely to be viewed by you as a bluff. you dont really want to encourage a call here, so a regular size flop bet is warranted.

it will also help you those times you do want to play a big pot if your standard bet after a raise is more than 1/2 the pot, as it will be less obvious when you have a hand and are trying to build a pot (assuming your opponents are paying attention).