I have both the FV500L and FV500H. The Ernie Balls are a bit better made, but not enough to justify the big price difference IMO. The advantage of the FV500s is they can also be used as expression pedals (which is how I'm using both of mine now).
shadow1 wrote:
I would not use stereo either so I guess that eliminates the FV500L
You can just use one side to use it mono. I've used mine to control dual mono too (piezo on one side and electric on the other).