I was thinking about Blackfire but read that after a few washes it loses it's "slickness" I like that feeling and I get it with Souveran even though i have to reapply every month. How do the Platinum products hold up? Any thoughts or advice?
I was not satisfied with either product to be honest, loses it's shine to quickly for my tastes. If I had to choose I would probably say Platinum just because it's cheaper.
I've had pretty good luck with BF. The shine's held up very well after 5 or so washes (with Z7 though) and the surface is smooth, but definitely not slick. This is on a beater that's outside 24/7 and also close to the ocean. I did apply about 5 coats of the BF paint protectant however. This is also with no topper. YMMV