For testing products:
https://www.youtube.com/@ScottHD/videos
Not much in auto parts stores work for long. Detailing shops will carry Gtechnic C2V3 topper which "*CAN* be used w/o a base coat.
You WILL need to wash, clay, wash, and alcohol wipe beforehand or it won't work well. Some of the new clay towel(s)/mits are very effective and fast. Otherwise...half ass it and squirt and wipe.
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2015 Sakhir/Sonoma (first one totalled) 2nd one MHD and BM3, Eventuri, Mosselman, NICECNC, MAD FAT BOY DP, "Valvetronic Designs" single mid, PAGID RSC1, Hotchkis/GTMore, Vorschlag, Bilstein B16/10.
Soon Powerflex diff brace.