As with some shampoo comparisons (Optimum, interestingly enough, vs. Griot's comes to mind), enough reliable people have differing experiences that I simply see it as another YMMV thing.
So hey,
Yakky, not like we all have to love the same stuff! Just look at me regarding ONR
I like FK425 because it's at least as slick as anything I've ever used and it's utterly Accumulator-proof. I've heard some rare reports of Optimums QD streaking, and I've experienced that with other QDs where it's considered very rare. So I'm not gonna risk it just to see if something new is better than something I'm completely satisfied with.
No, it does'nt always play nice with certain LSPs; it's messed up 476S *on severely compromised paint*. So in that sense it was *not* Accumulator-proof. Don't think anybody else has experienced that, and the vehicle in question really is in "needs repainted yesterday" condition.
Yeah, the look is bright/shallow/sealanty, but I only use it on vehicles where that's not a concern (still love Griot's SpeedShine on waxes).
No, I don't get the anti-static qualities that others rave about. Eh, I don't care, sure no worse than any other QDs I use.
No, I don't get great cleaning, but if I want that (which I rarely do), I'll use FK146 or ONR.
Eh, it's a slick, Accumulator-proof, sealant-friendly QD that I can get cheaply enough in gallons. And I like how it smells. Good enough for me, even if that does sorta sound like faint praise.
I oughta try the 3D/HD QD, what with my gift certificate, maybe I'll like that. I read somewhere that it can do a tiny bit of filling, something FK425 sure doesn't do (FK146 seems to do a tiny bit of it), though I think I also read that FK425 has been reformulated to hide a little bit....can anybody confirm any of this "filling" info?