Correct me if I am wrong.....and i hope I am...but your photo seems to show some SERIOUS shop dirt dust OR what ?
We're talking engine killer.
were I you I would either eat it or STOP until you sort out the reasons.this could perpetuate at a very unfortunate time.
Those valve bridge studs would have to be SERIOUSLY worn to warrant any attention/change.
I carry my 30 year old Kent Moore rack/gov adj tools and I have NEVER seen what you got.
If one broke when they started it......well use your imagination.
Somethings are bent,how or why they would be telling me.
and really ReliBilt are cheaper.
Think about it. eopoxy does not take well to heat.....
So it is the new oversize stid put in with the locktite all over it. Two were bad. Shouldn't the head shop caught this? Two of them were bad on broke when tightning the rocker and the other jammed when the bus was started up