Pat, This is the Powersport PSRU with a different name. I believe this is marketed by Atkins. This is a good PSRU. It is a bit heavier than Tracy's. The Unit is well designed and in the past has been nicely made. Since it has spur gearing, internal on the ring gear, it offsets the centerline 2-3 inches higher which can be helpful if you have a tight cowling. This unit has been EXPENSIVE. I'm building an RV-10 so a c/s prop would be nice. I might buy Mistral's PSRU instead in that price range as they already incorporate a Hyd-c/s capability. You would have little to worry about with that unit though.