Now, take this with a big grain of salt, but my M50tis (about 6 or 7 years old at this point) don't image nearly as well as my M80v2s. I know there have been upgrades to the M50s, so they may have improved over the years. I think I may be the only active board member who still has M50s.

I am the Doctor, and THIS... is my SPOON!