it's kinda senseless putting the sealer/glaze over NXT as it won't bond to the paint and will fade off extremely fast.
Putting another coat of NXT is useless too because all you're doing is sealing in the swirls. It won't hide them very much.
the keyword here is PREPARATION
fill or preferably REMOVE the swirl BEFORE you put on the sealant (NXT). This can be done the products mentioned above, scratchX, 81, powerpolish, etc...
NXT has very minor swirl filling capabilities, it's main job is to SEAL and PROTECT. You have to fix the problem before you seal it in. Get it?
