My advice for any and all coatings to reduce high spots is to apply very thin. Remember how thin it actually cures to, and how little is actually needed. If it wasn't for the fact that we're human and can't apply things at a micron level, a 30ml bottle could probably do over 5 cars or so. The other thing to is the prep, anything other than bare paint is going to cause smears and difficulties removing, especially when you consider solvents playing with oils. What I do with every coating is I'll apply it thinly over half the panel or a quarter of the panel, and then when I'm done crosshatching a few times, I wait to see it flash then I go back with the applicator pad and work it in even more with more cross hatches or small little circles. That alone will solve you a lot of grief when you go over with a towel. As well, go over with plenty of towels. Three towels per panel essentially, use all sides. If you think you've wiped enough, go over it a few more times just in case.
