the adjusters almost all the way out reduces the ratio slightly
Depends upon the brand / design of the rocker. You can't say either way without having measured the lift curve with the adjusters at max and min extensions. Yes, I have data to validate my statement.
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)