Andrew if you are talking about the ninety degree bend in the 2/56 wire with a plastic keeper, They are perfectly fine and reliable but I never use them for two reasons first they are difficult to remove and reinstall but most important they inhibit the servo arm when the closet hole is used and more folks need to use the closest hole to the servo on their trainers . This is especially so on a nose wheel push rod because typically far to much throw is used on this rod.

John