To be honest, if Roland provided a 'wrap-around' for Fill UP or Fill Down (in other words, once you got filled up to Var4, and hit it again, it would go to Var1) you wouldn't NEED a multi switch pedal (be nice if you had the option to go either 1-2-3-4-1 or 1-2-3-4-3-2-1, though)

You could simply use a sustain pedal and that would be it (two or three VERY fast taps would get you from Var1 to Var 3 or 4). It's how I used to run the G1000, never bothered with the FC-7 back then (although I bought one - glad I kept it, now ), and kept stage clutter to a minimum. All I use my FC-7 for is Variation section, sustains, and the one left over is my Leslie F/S. It's not like I'm trying to do the WHOLE thing hands free, but Var selection and fills is something you do dozens more times a song than Ending selection, or OnBass on/off, etc..

It just makes sense to me to delegate the one thing that interrupts my playing the most to a foot I'm not even using!

Does Yamaha allow you to cycle through the Variations (Up and Down) with a single pedal? If they do, maybe it's worth a try? How could it HURT, anyway?