How to play flushdraws?

Hello
I have two scenarios:
1. I play SC and flop a draw. Here I usually bet about the pot for fold equity and desception if I make the flush. If I make the flush on the turn I usually check it and make a bet on the river which i usually called on NL 50. If the turn is blank i often get the river free but then there isnt much desception left...

2. I play Axs and flop a nut flush draw, here I dont know really but would like to check a lot for the possibility of stacking someone on the same flush draw. This is very rare though.

What are your thoughts about above?