I have a Jomar with the 7/16" studs I'm not using, I went to Jesel shaft rockers.
Shoot me a PM if interested.
Why did you go for the upgrade to Jesel even with the Jomar girdle? Do you have any pictures of the Jesel shaft set-up installed?
I just did, and the guy working on my heads, Shane Studley liked them. They are pretty pricey.
I broke a couple 3/8" studs with the girdle, had Harland Sharp convert my rockers to 7/16, never another problem.