I'm not a satisfied agbay customer. It came apart about a year ago and I can't get the darn thing back together. It was too much work anyway. I like my knife, I don't have to adjust it, unscrew and screw parts, and I have way more control. Which is pretty much how I like everything in life....in my control :)
I've been trying over the past year to not be a sucker for cake toys anymore. Mostly I've succeeded. I did just by the damask layon though. Haven't spent any time with it yet.
To answer your question, something lightweight, easily adjustable, and maybe casters on the bottom to help it slide back and forth. I dunno, that might get dangerous :)