Is a lenticular disc wheel faster than a flat disc wheel?

Question: Is a lenticular disc wheel faster than a flat disc wheel? I remember having read somewhere that in windy conditions a lenticular disc wheel was faster than a flat disc wheel. Is/was that true? Is the difference significant or not really?

i think cobb said a flat disc was better for track racing.

the lenticular disc with the 80-90mm toroidal bulge seems to be the fastest and least sensitive to tire widths.