This is what I've done too (I use Dvorak on split keyboards and QWERTY on non-split keyboards) and it's done a good job of keeping my QWERTY speed up. I do have

This is what I've done too (I use Dvorak on split keyboards and QWERTY on non-split keyboards) and it's done a good job of keeping my QWERTY speed up. I do have to look at the keys if I'm trying to type QWERTY with a split keyboard, but that doesn't happen to me very often, and it's not really much of a problem when it does. I occasionally get a few keypresses wrong when I first start typing after I've been using the mouse, but once I'm going I'm fairly accurate.