My thinking is this:

1) When betting flop ip you can bet more bluff combos per value hand than when you are being out of position. Reason for that is because you will realize more of your equity on your bluffs when being in position.

2) Bluffing when being out of position is more expensive than when being in position (as GameTheory taught me). Reason for that is the same as above. (He did not explain why)

3) When you arrive to river it is optimal  arriving there with an effective potsized bet left. Reason for that is because you do not need to make an overbet to be allin, and you do not have to risk having money left after betting and therefore having more difficult to create optimal ranges because the risk of being raised.

4) You should aim to have your bluffrange consisting of only good draws on turn like BD draws, flush- and openend straight draws from flop and similar.

I would appreciate if you guys could comment my claims and correct me when being wrong (because I know I probably am wrong in most of my claims since I am a noob when it comes to GTO poker)

Thank´s!