That's fantastic, Rick! And only 2.5 hours worth of data!

My only minor suggestion might be reigning in the noise in the fainter nebulosity, or add a tad more data?
I've been mosaicing the Cat's Paw with my RC8/STF-8300 for a while... I'm up to 31 hours in Ha and it has about the same (maybe a bit less?) SnR as your effort

Not surprising though - I think your set up catches photons at 12 times the flux rate as mine
I'm glad you've got this combo working well - can't wait to see the LRGB images. Have you thought about pointing it at the one target for 120 hours?