1. Unless I think he's varying raise size based on hand strength, not really. Obv this changes the odds
, but that's not something I pay attention to for calling/3betting purposes. Minraises strike me as fishy, so those do change my ranges. Interesting idea though.
2. No. My sizing changes based on position and villain types, my range changes for the same reasons, but my range not related to my raise sizing.
3. If I think he's varying his range based on flop texture, than yes, I use that as information to determine when I'm continuing/raising. For example, if villain bets smaller on a dry board I'll use that info to fold more of my marginal hands. On draw heavy boards, if I have a weaker draw, a bigger raise will sometimes cause me to peel more widely.
4. I'm not sure I get this one - if I think I'm ahead on a draw heavy board, I'm happy to make a bigger bet, if I get a ton of action I'm obv re-thinking.