Any one using an SAE steering spool and having o-rings wear out and leak frequently? I have not logged the # of runs after rebuild but I have had leaks at least two maybe three times in three years and only put 15-20 passes on the car a year. The used o-rings look fine, they are not chunked out or torn that I can see. I use silicone oring grease on assembly and I am very careful on the installation not to damage them. Maybe it is normal and I need to replace them on a 8-10 run schedule. B&J trans 400 PSI regulator. Maybe they just flatten out and loose tension pretty quickly. I am using the Buna N o-rings recommended by SAE. I think they are 70 durometer. I use the 90 durometer in the shifter buttons.