"Thats the one thing you probably have little experience in is working cheap clears. "
seriously dude ? you do know i am 68 years old and have been painting for 50 year right ? i've used every junk clear thats come down the pike . when urethanes first hit the scene they were all junk. kicked off in 2 days rock hard and damn near impossible to buff. some were thick as molasses others were piss water thin . impossible to repair or recoat .
but one thing i do know is cheap junk polishes. 3m has never made a polish that was not full of fillers. polish to glass , deliver , first time washed it looks like shit . in the 70's we used mud in a bucket for polishing lacquers and enamels . worked ok on the urethanes but they just did not want to clear up .
your right . chemical guys doesn't work . dont waste your money on it . use 3m . after all they sponsor nascar , gotta be the best .