I played around with this stuff years ago looking to see what happened when I set up the valve train to achieve different end goals. It's not just a "peak lift thing"; you can also measure differences in net duration at various points across the lift curve, as well as variations in the scrub patterns and where in the lift curve the majority of the scrubbing takes place.

Now, if you asked me what my findings were... I can't tell you where those notes ended up, nor would I claim my "testing" was precise enough to make any specific claims one way or the other.

I will say that the final configuration I worked out for those Stage VIs resulted in a nicely centered sweep across the valve tip that was somewhere in the .050-.060" width range over .600" lift. It followed Jim Miller's Mid-Lift concept, rather than Jesel's, and the guides showed basically no wear after about 5K miles when I sent the heads back to Dwayne Porter to be touched up.