Hay Aghost,
May I chime in here a bit, for I've flown both Lado and Sierra rotating retracts.
I now fly Sierra retracts in my models and though I do have two sets of Lado's flying in my P-51's, I only use Sierra's if I need rotating retracts. I had a set of Lado rotating retracts, but sold them. The older Lado's were failure prone and let them go...just follow the thread on Lado retracts. The 90 gear stock non rotating Lado's are good, but not the rotating type. I have no experience with the new ones being made today, but they only sell 90 degree rotators. Sierra gear are an entirely different bird altogether.
Sierra rotating landing gear are not cheap...but they work and they work very well. They also are 100 degree rotators too and the gear action on landing...will take a less then perfect landing and make you look like a pro. They are amazing.
Soft Landings Always,
Bobby of Maui