I have been sailing my Uni with a chute for 4 years now. I think it is a sweet set up. I would caution going with the I17 chute though. With the spinnaker you need it built around the dimensions of the platform.
I went with a longer pole then the I17 as the beam on the uni is set further back.


Few measurements from my boat:

Distance from the Spinnaker tack to the shroud is 15 feet

Distance from the Halyard Block to the shroud point is 25 feet 8 inches.

I had my Spin built by Ulman and I have been very happy with it.


Unfortunately in the Northeast I have yet to match up with any other Single Handed Spin cats so I have nothing to compare it too.

Craig