I had the Robart 615's in my corsair and they were a bit of a problem for a while.. Robart improved them and I bought the upgraded parts.. That helped.. The biggest problem I had was the wheel turning upon landing.. they changed the gear at the top of the strut and went to using 2 set screws to secure the leg..
If your scissors are bending.. why not just make a set out of aluminum and be happy?.. lol Regards BobH.