Just ran the MVVS 26cc gassers for my Palmer Bronco. I made a cradle to hold the nacelles while I set up the engines, exhaust, and TwinSyn system. Cowls go on in the morning. The TwinSync worked perfectly. I have the halls sensors mounted to use the ingition magnets. I had smooth sync from just above idle to full throttle. I have one engine that is about 200rpm slower than the other but you couldn't tell when both were running with the TwinSync.
Check out the video.
http://www.youtube.com/watch?v=egIKZSZNAjQ