Voyager RME and Slim Phatty Together?

[The Mule]

Ever since I picked up my Voyager RME last year, I've found I don't really use the Slim Phatty so much anymore. I've actually been contemplating selling it, but I figured I'd post here before doing something rash. Are there any ways to use these two synths in tandem that I may be overlooking? I know you can chain Phattys together or Voyagers together for polyphony, but is it possible to chain a Voyager and a Phatty to one another?

[kamilof]

Not entirely sure how to setup polyphony using RME and Slim Phatty (?!). However I used to have similar situation, back when I had Little Phatty and Slim Phatty (for polyphony) and then I got a Moog Voyager. Not long after that, the Voyager was the main music tool and the Phatties started gathering a dust, so I sold them on eBay...

[The Mule]

Yes, I think the Slim is going to be going up for sale then. Thanks!