I have never had a lobe go flat on any cams I've installed over the years.
Guess I better knock on wood, But I've allways used plenty of cam lube,
run 10/30 for break in's and packed the oil pump with vaseline.
I did a cam for my Ex-father in law one time, sent him down to
the parts store with a exact list on the stuff to get.
He came back with all kinds of mismatched stuff, the guy said it was
on sale so he bought it. The guy was just trying to get rid of the stuff he
had, I wanted to go down there and pull the guy over the counter because I
had talked to the guy. Anyway I had to retard the cam by three teeth on the timming
chain to get it where it was supposed to be. Something must have fallen down
in the engine [piece of gasget or junk] because with in a week it wipe the main bearings out. He gave me the truck at 5pm on friday night, by 2am the engine was back in the truck and on the road headed for a car show in Illnois hauling a french fri stand.
Would have been done sooner but broke a main cap bolt and had to stop and go get a new one. And he made his 10 am starting time too!!! Kurt