don't spray the activator and it's 2P-30 :blink:I feel your problem. For miters I don't use 2P-10, just not enough time to get it perfect. Especially with prefinished. I use Tite Bond II and 23 gauge nails. Fill them with Mohawk Fil-Stiks.
I use 2P-10 for a lot of things. But crown miters is one I don't like to do. If it was 2P-20 I'd use it.