I think you covered most of it wheels.
IMO (all low crosswind):
Beth 10 - long irons from teen and fway.
Beth 11 - Long irons check again, and also a grasp of short irons;
beth 12 - mid and short irons.
Kiawah 1 check it all.
Then set up a low wind Beth B9 in your CC, and play that a few times with all the new yardages...Personally I like using spin so mine are mostly 100% power and different spin settings, but I do choke down power a fair bit too. Some (and see the reasoning) so it all more with power less (sometimes no spin).
It's what you want out of the game, but I don't see how you can have "feel" without a good framework to work around. Some holes just play differently too.
Depends what you want really. Go and bang the crap out of Beth F9 all day in low winds then fine no calcs useful at all as almost do it blindfolded if 30s are all your you are after. Want a solid framework to compete several places then some yards need to be put in (including wedge play and putting).
Also people with the most complicated calcs (can take a while) do not necessarily make the best players, far from it and some are plain lousy. Simple math calcs that take a few seconds in your head, and a framework to allow "feel" lets you get to a v reasonable IMO.