Holley question, what do think of Vacuum Secondary vs "Double Pumper"?

I'll take the DP. I ran a 750 DP on a virtually stock 360, stock exhaust manifolds, with stock converter and 2.45 gears and the DP cut the best 60 ft, 330 ft, 1/8 mile and 1/4. Yep, even with 2.45's and a stock converter in a 3200 lbs Duster.
*This is NOT the only project where the DP has run as good daily driving and performed better. Cost more, though