Oman,
Wasn't trying to bash at all, just restating what my experience with an XE grind was, others here have said, what Comp said when I emailed them about the noise. "It's just the nature of the cam".
To be sure, everyone's set up is a little different and what made noise in my engine may not make noise - or as much, in someone elses. For each Comp that has gone flat - for whatever reason, there are dozens and and dozens that don't.
My XE gring DID end up loosing a lobe but not until the engine had a bit over 3000 miles on it. The heads were professionally assembled and spring heights were checked/set using the springs recomended by Comp (911's) to match the cam. Indeed, the entire engine was professionally assembled, pre-oiled, and it fired immediately upon initial start up. It's still a mystery.
Dan
