I've been using FK425 exclusively for my QD. I'm waiting until I get AJx2, then AJT x 2 ... then I'll decide if i'm ordering 1000P.
I never tried PW. I still have both Natty's, #16, S100, Blitz, Collinite 845, etc ...
I think I mentioned, I never was a fan of #16. One of the few times I disagreed with Scottwax. Durability is a non issue since I live in a mild climate and never go a 4-5 weeks without applying something.
LC pads are good, although I haven't brought out the PC in awhile. Did you order them from TOL?
The only other product I'm curious about (other than 1000P) is Meg's #21.