Since no one else has answered your questions about the tar and the 360... here are your answers. For tar I use Stoners Tarminator, great stuff. And for the 360, I've used it 4 times and always had to buff with a MF. And no you don't need to wait 8-12 hrs to apply anything on top of 360. I let sit for about 15-30 mins before I buff the car off. Anyway, hope this helps. Hollar back if you need some more help.