Best hydraulic flat tappet lifter?

Thanks, Moper. I always appreciate the insight.

Just for the record.... we have had these additional soft lifter issues show up in:

• A 4.7L Dakota engine.. All new stock replacement lifters in 2014, and some got rattly/noisy in 5-10k miles at start up and one never would quiet down. The original ones from 2003 were all good for 200k miles except for 1 that seemed to be a tad soft on occasion. Always clean oil, Mobil 1.
• Similar issue as above with Mitsubishi 2.6L lifters (followers, in the ends of the rockers). The replacements just would not last well. That was 15 years ago.
• Never had any hydraulics lifters go soft on any engine prior to 10-15 years ago. That included those in my 1.9L Opel rally engines that saw 8k RPM frequently and 7.5k at every 2-3 shift.

I just wrote it off to poorer design and mfr processes for after-market parts until this incident last year with the brand new Crane lifters.

And, I have tied it all in with poorer rebuilds and such coming out of Mexico and overseas.