Thanks Mark,

If it uses quick taps, that's fine, it's pressing and holding for x number of seconds that I am not a fan of.

My thinking on the knob is, since it only has one,and it is nearly the entire interface, let's make it a nice one Even the current 250EX amp knob is a bit nicer than the one shown in the photos of the 255. After all, this is your top-level entry in the US, right? Thanks for whatever you can do for us.

Jim