Anyone here using or have any experience with Shubeck Roller X lifters? A very inovative design that does not use a axel for the roller thus no needle bearing issues but they are expensive so I'd like to hear from a user before getting serious about buying them. Shubeck was involved with some really neat stuff in the past like the 2 engine 4 wheel drive Oldsmobile dragster back in the 60's.

 

These lifters use a keyway style design.