What sets T&D apart from Jesel with regards to fulcrum bearing life? What is different with regards to construction of the bearing and shaft, as well as thrust take up? Curiosity has the best of me- you can read of lots of fulcrum bearing failures and such with Jesel but very few with T&D.
I trashed the fulcrum bearings in my Pro Series Jesel rockers. Locked the #8 intake nearly tight, with #1 intake almost as bad, along with a couple of exhaust rocker bearings having issues as well. Last spring I replaced all the bearings in the rockers after finding the "closed ends" of the bearing race broken during the off season. Had been chasing a miss for the last three race weekends, finally the rocker let it be known during a check of springs- it took 550 pounds on my LSM tester to get the rocker to move with the valve closed..
Just for the record, it's a 15 degree CFE headed SBC spinning no more than 8500 RPM, with valve lift just over .850". 1.7 rocker ratio. Springs are good, no signs of instability with the setup other than the bearing failures.