Thats seems to be the way it goes sometimes. We just get to liking something and then its gone. I know there were a couple of guys that really liked the GSC inflight adjustable props that were available. They reported that they were seeing a big gain in cruise and a little gain in climb with this setup and then with about 50 to 70 hrs the hub assembly started causing problems. Last I heard from them they had both payed a machinest to modify the hub for a different bearing and was having good success. I always wanted to try one but really did not want to deal with problems. At one time I believe they actually were making the hub and putting warp blades on it. Does anyone out there know if this is still around and does it work? If I am not mistaken the adjustment was a vernier control that ran through the center of the gear box on the Rotax.