I have both the gel and spray. I guess it's just a matter of preference but I like the spray better. I guess because a lot of my details or tires with kind of weird tread designs on the edges and the spray seems to be easier to get in all the grooves. I use PB on every detail that I do and have never had anyone complain about their tires. I've tried numerous other brands and have always went back to PB's. After it dries it does not sling off and leaves a really great look to the tires. You will not be disappointed with it. In fact I use numerous PB's products and have not been disappointed with any so far. It is one of my favorite product lines. When you get it let us know what you think, I'm sure you will like it.