Just curious, do you typically polish before you apply and if so what polish has given you "best" look?
No, I don`t polish before I apply it unless there`s marring to correct, and that doesn`t happen often. I haven`t done a full-vehicle polishing for years (and I don`t mean just three or four).
But FWIW, I do my serious correction with M101, less-serious with HD Cut (I might switch to Griot`s stuff if I ever use those up), and I almost always Finish Polish with HD Polish (haven`t tried the new "Polish+" version as it takes me forever to use it up). I *UTTERLY DESPISE* M205 and I won`t use Menzerna either. And there`s my Abrasive Products answer in a nutshell
The closest I come to using an abrasive regularly is my now-and-then use of some old 1Z products (Pro-Line Metallic Polish and WaxPolishSoft) that are *almost* nonabrasive on my paints (they are functionally nonabrasive in the sense that they won`t take out even the lightest marring), and ZAIO which is also too mild to do any cutting. Maybe some KAIO which is always functionally nonabrasive for me, on everything.
So far I`ve never had any problems with FK1000P going over products like the 1Z/AIOs that leave stuff behind.
I hardly ever even clay/etc. before redoing the FK1000P (though I spot-clay as needed at every wash). I get a vehicle as good as I can get it once, and then I just try to keep it that way. Yeah, kinda challenging, but it works for me.
Heh heh, you`re washing as often as I once did

Now I don`t wash for incredibly long stretches at a time, well...except for my wife`s car, which gets used a lot, and even that doesn`t get done weekly.
It sounds like your Love Bugs will be a real Acid Test for the Fk1000P. Sure hope it works OK for you, looking forward to hearing about it.