I was just browsing over at Musician's Friend when I came across the "Duallist" Single Foot Double Pedal.  The basic idea behind it is that you can put it into a mode where it hits on the upstroke and the downstroke, or you can have it normal.  Now, being the wannabe speed junky that I am, this seems like a Very Good Thing.  In fact, two of them and two bass drums would be even better.

Anyone use these pedals?  Do they work?  Do they last?  And how hard is it to coordinate "quad" bass?

   D-Rod

I agree, it's not that hard to get double strokes, and it's even easier to get double BOUNCES (which is a different story in itself.)  I actually came across double strokes on bass by accident, and just improved upon it.  But, of course if you want to have lightning fast bass w/out practicing i guess the dualist is worth a try...to me it seems like a helluva lotta trouble to coordinate all the switching from double to single and this and that... maybe you can fit a dualist to your right bass along with your regular pedal...you just have to experiment and see what u like!

I have no experiance with these pedals but if I ever get them it would be for show.Have both set on double and play 2 bass drums with 4 beaters at once.Just for a mega loud effect.I am though interested in the triple pedal they have.Could be cool to do some experiments with that.