Problem removing inner valve springs

never ever ever had a flat lobe. I believe the higher rpm's and fluctuating is the lobe killer.
In the 70's it was 1500 steady. lol
I start low 1800...and work my way to 2400..then finish with a couple 3000 whaps.
Hughes cam, only one to go bye bye...165 seat psi imo was the killer.

If you never lost a lobe... then you can't really assume or say that 3,000 RPM is what's going to do it, can you.:usflag: