I typically use Poorboy's products over Black Hole. Their waxes and sealants are easy to work with. So easy. (and smell good)
For Autoglym Super Resin, I topped it with Finish Kare's FK1000p. It's the High Temp Paste Wax, but it's a sealant. I got 10+ months (i stopped checking at 10 months) after applying two coats (one week apart) on a daily-driven, garage-kept-overnight SUV.