What kind of spring pressure are you running? Don't know about the Jesel's, but I am switching to bushed T&D's due to the bearing wearing on the shaft. Started when I went over 700lbs on the springs. I don't have any problems with the intakes, it is the exhaust rocker bearings that wear on the shaft. I considered going Jesel but just relying on splash oiling to the rocker bearings doesn't instill confidence in me either.

So I guess I wait for the bushed, if T&D ever gets around to making them.....