My gut has been Mark V for some time now. Those of you that played both the iv and V, is the V more versatile?
The IV isn’t as versatile. The V has a “better” crunch/second channel if that’s your thing, and the “fat” mode on channel one is great.
But… I moved my MkV and wound up with a IVa and am way happier. The reverb sounds more fender-y, great clean tones, less “fizz” on the lead channel, the loop isn’t as artifact-y (or is at least in a different way), and since I found the MkIV mode to be the “best” mode on the lead channel in a MkV… I don’t regret my choice one bit. I also dig the smaller foot switch.
Contrary to most MkIV naysayers, I find myself tweaking the IV less than the V too. Can’t really go wrong with either though.
I love my Rockerverb 50 MkIII head. My Cu24P and my CE24 Semi-hollow body sound fantastic through it.
It is a great combination from clean through gain.