Thanks all for the great feedback. Based on what I see and feel from the Powerlock, and what was said here, I am leaning towards not putting anything else over top of it. Especially as I came home from work and looked at it again (and again).
I am going get my hands on some products you've...
I have just fully corrected the paint on my 1955 chevy. I followed with an IPA wipedown and several coats of Menzerna Powerlock sealant. I have traditionally always followed with several more topcoats of Mothers carnauba wax.
The 1955 is not a daily driver. I don't drive in the (northeast)...