It actually looks bigger then 20'.9" But it seems like the Ideal boat, & motor combo!
Wow, 52.7mph!, and it's probably not fully broke in yet. The Enertia is a great new design prop as well. Try some Turtle wax "ICE" on the bottom, I use it on all my vehicles because it never leaves water spots, the rain just sheets off, it seems to repel water.
I had an older 20' SeaRay bowrider with a 228hp/305 Merc. with synthetic oil, thru hull exhaust, & an unpainted bottom that I coaxed to 50mph max fully trimmed out. Didn't know about "ICE" back then, and I'm sure my boat was a bit heavier then yours, but that was still boogeying!
Best of luck with that new beauty of a boat!