Sounds like I had better rent a mirrorless first before taking the plunge, Dave. Thank you for that info ...I didn't realize it would be that different.
Hi Jan!! Oh, I plan on making that dr. appt. and hopefully there will be a remedy that does not include surgery! Even after all is good with the hand and wrist, I would think that I will always have to be careful with causing undo stress and strain. I have always had to uncomfortably stretch my thumb around the 7d, 7d ii and even somewhat around the 6d. I do not know if the Sony would be smaller in this regard. I think it would be best to rent it first and see.
I never looked at Fuji. Something to consider. I think I will need to take my time and examine weight and size of what is out there. I would prefer to find something on the used or refurb market and the Sony wouldn't hit that market for quite a long time! After buying all new Canon lenses the first few years, I could really kick myself now!!