1) You're obsessing too much.
2) Those temps are perfect, even the 94*F on top of the hide under the RHP. I wouldn't want it to be any higher but that's not an unsafe temp.
3) Yes of course snakes on top of a hide or basking shelf are going to be closer to the RHP and thus will run warmer. With my larger ones I find that they don't put ALL of themselves on the shelf, just the part they want warmed (like, where the bunny is) while their heads and tails are in cooler areas.