I guess the type of surface one is waxing may have some influence on the ease of application and results.
My '05' Eagle has the Filon "somewhat" smooth surface (as did my '99' Eagle), but IMO Filon isn't as nice and smooth as a fiberglass/gel coat surface.
I tried using different waxes over the years, paste, liquid, etc., on the Filon surface with mixed results, but tried 303 Aerospace Protectant a number of years ago and never switched. It's real easy to apply, has true UV protection, and doesn't damage decals over time like many waxes will.
The '303' requires a couple of applications during the camping season, but it only takes me 30 minutes to do my entire TT. A gallon of the stuff lasts me a number of years, and I use it on other surfaces as well (TV tonneau cover, etc.).
I spray the surface with '303' and spread around by hand with a with a typical wax applicator pad, let dry a little, and wipe over with a damp towel to spread around any streaks.
Works for me