There are different types of cam cores out there as well as lifter manufactures and the quality is not all equal anymore. Many of these bigger cam companies have been bought and sold and the guys who used to do it right have retired, or were forced out during mergers.

On the Speed-Talk website you can read all sorts of good info about cam cores (P55) oil additives, where good lifters come from etc..

People are having even low lift RV type cam and lifters fail and not just the race level parts so it's a problem for everyone to be wary of.

I like the idea of the hardened foot on the GM taxi cab lifters in the one video I posted. Other companies should offer that as an option.