RE: Sierra vs. Robart retracts?
I don't know anything about the retracts your refering to but I can tell you 2 years ago I bought Robart retracts for my 85" P-51 and the only way I could stop the blocks from breaking in them was to buy some aftermarket alumin. ones made by Sierra. They have never broken since and I have put them through a lot. I also found the owner ( his name escapes me ) to be very nice and it seemed he was always there to answer the phone and my questions.
If it's still the same place as it was then and I needed a set of retracts I would buy from Sierra. How much money have you got into the plane besides the retracts ???