i think that a high compression spring would reduce the risk of incorrect valve lash and yet provide for a quick and accurate adjustment...
in a perfect world every lifter would be the same, every pushrod would be the same, every valve stem would be the same and so on... i think that this would allow for a more perfect setting...

MAYBE I"M OFF MY ROCKER

has something like this ever been thought of?

 

You must load the lifter plunger (hydraulic). Spring load under the pivot-fulcrum will not work without loading the lifter.

I'm in process of a Comp pro-mag RR install on AFR 190 heads. Having trouble with the standard chevy guide plate design allowing the RR to line up on the valve tappet. Fabbing my own guides now, but, never did this, and, I'm in uncharted waters now relative to geometry and changing column load on the push-rod.

 

my thinking is that you would be able to torgue for exact preload that would be determined by you spring.(instead of the old 1/4, 1/2 etc... turn method...

i believe it would also help save your valve train in the event of a collapsed lifter...