2. I want to charge other hands for being in better position than me for all future betting rounds.
Meaning you want to put more money in when you have shit for position during the postflop rounds, which actually matters more so than preflop. Maybe its just me, but Id rather not raise as much in a blind, due to position, not giving money away without position. You have KK so its not as big of a deal.

This seems weird to me... and the 3/4 pot sized bet is perfect, I dont think Id do any different. Overbetting the pot is pointless unless you can set a trap with it.

I really just think $20 sends a clearer message than $15.
Ummm, yeah...