Does this prove David Vizard's 128 lsa formula ?

1978 Crane cams catalogue, SB Chev. Has 26 flat tappet grinds listed, hyd & mech. 8 are 108 LSA or tighter.

Fast fwd to the 2010 catalogue, which was after DV did the cam testing for Crane.
73 flat tappet grinds, hyd & mech. 32 were 108 LSA or less.

[1] Used SBC because there are more grinds gives a better numbers spread.
[2] The above cams do NOT include oval track grinds which are often on tighter LSAs.
[3] The numbers speak for themselves.....