Buffing clear coat

[pwdcougar]

OK not sure if this should go in the detailing section or not so feel free to move it admins.

I've got 20 year old Sikkens paint on my 69 Cougar. It is the base/clear. After 20 years of using detailing spray wax before car shows and cruise nights the paint just doesn't pop like it used to. There are lots of really fine scratches in the clear. A friend just picked up a Snap On rechargeable 3' buffer with wool and foam pads. What product should I use to clean up the clear? I'm planning on going really slow and staying away from any edges so I don't burn through.

A couple years ago I went over it with a clay bar system and there really wasn't a lot of dirt or junk in the paint.

Thanks

Paul