The SY300 has piqued my interest for a long time - I bought one of the original G-707/GR700 systems in the 90's, and played around with it, but it was far too big and bulky to take to a gig on a regular basis:
http://www.joness.com/gr300/GR-700.htm
Then I invested in the 'new' GR-55 system about 2 years ago, it's a great, compact alternative:
http://www.joness.com/gr300/GR-55.htm
I also picked up a cheap GR-S:
http://www.joness.com/gr300/GR-S.htm
All to fit into the PRS I modified to be a 13 pin hexaphonic pickup guitar:
http://neophytte.mine.nu/photo/2011-09- … K-Kit-GT3/
Having a synth that doesn't require the special pickup would be great, but I've already invested a bit in the 24 pin/13 pin systems ....