Does this prove David Vizard's 128 lsa formula ?

You pay for the cam and dyno time and I’ll test it.

But I’m not taking one cent out of my pocket to do it.
To me the only way to test it is say DV say a 260° @ 0.050" on a 107 lsa with 75 overlap is the cam for whatever build, someone would need to test it with cams probably at least from 102-112 lsa in 1 degree increments while maintaining the 75 overlap (of whatever it works out to be in the made up cam above).
And really you would need to do similar test with at least a dozen or so different type, sizes and levels of engine builds to see if it holds up overall.

All the test people are talking about just prove tighter lsa generally gains mid range torque.