When breaking in a new cam I always use EOS or whatever high-zinc cam break-in lube (Comp sells some, for example) teh cam manufacturer calls for. If I was running a flat-tappet cam with a lot of spring pressure, I'd want to break it in with weaker springs then swap in the stiff ones. A cam with wiped lobes is an expensive pain in the butt compared to using a little caution; OK, call it paranoia!