I drilled a hole and bolted a metal ball through my plastic blade nips when I use to break them off, It works well, but it is hard to find the right size ball. You have to also change the link if you switch to a standard ball. I finaly got the hornet super head on my 22E It wasent too bad once I had the extreamly small tool to fit the set screws. You have to modify it a little cause the main drive shaft is shorter, You have to flip the main gear over, and than adjust the ball screws on the servos almost all the way down cause the swash plates sits lower. It flies way more responsive, and seems like a strong setup. The stock blades also will not line up with the holes in blade nips, you have to drill a new hole in the blade. If any one orders this head be sure to get the little allen wrench or you will just be able to look at it on the bench.[&o]