An image from 30th May, the SN appeared to have brightened slightly from my image of 24 hours previously; however the 30th May had both better seeing and the SN was a bit higher in the sky. From comparing last night and tonight, there appears little change in brightness (maybe just a wee bit brighter, ~0.1mag?), though I'd revise my estimate of brightness to nearer mag 16.6 with the sharper view.
Also an animation with an M66 image from last year taken with my old scope, the improvement in resolution from 150mm to 200mm is significant!
The
weather probably ensures this will be my last M66 image for a while...