You will likely need to replace the retracts on the KMP bird. I had to. The KMP retracts have the same wobble as the H9 retracts on my Mustang, but you cannot expect them to always fully deploy.

The KMP bird is interesting, but I think you will get better customer service from H9. A Kondor is totally unreachable by email, he has not replied to a PM, and he doesn't do a good job returning phone calls.