Don't know. Seems Don is the only one using the board (and very well too). The reviews are not all that inspiring and I'd feel the sounds would be too thin in comparison to what I'm used to. It makes more sense to have a backup, but the 4X is of interest to me again. I have a lot of jobs coming up 1st quarter. I am always paranoid about my 3X puking and no backup is unwise.