I tried to rush a paint job today and skipped high build primer and sanding. Applied 3 coats of shopline BP basecoat and I can see blotches from small repairs and many sanding swirls. I'm assuming clearing it now would compound my mistake. Can I spray a high build primer directly over the basecoat? Or do I need a sealer first (or something)? Or should I keep building the basecoat?

Can I then apply base directly over the high build primer? The shopline spec sheet says I can but the shopline brochure recommends a sealer first. The car is just a driver (with $100 of wasted paint on it