[Tropo-Bob (Bob)]

I am thinking of buying a Celestron 8inch SCT (Tube only). I have previously downsized (having previously owned two 12” Dobs & two 8" reflectors), and I have lots of smaller quality scopes, thus, this would be the equivalent of “light bucket” that will fit on existing mounts (largest being an EQ5) and thankfully will not take up much additional space.
I am already in procession of a 2inch focuser that will fit onto the back and also a Celestron 6”/8” dew shield. (I do already have a Celestron 6”, which that focuser will not quite fit!!)
My question is: How well will this set up work with wide-angle, low power, and what is recommend as a low power 2” inch eyepiece (with 3mm to 4mm exit pupil) for such a setup?
I am concerned about the level of vignetting (light-drop off) that I may encounter with a wide angle eyepiece. I know that it is not such an issue with the larger SCTs, but I am uncertain about the 8”size.
A second question, is that given I already have accessories for the Celestron, is there any technical reason why I should consider an 8” Meade SCT instead of the Celestron?