Comparing Mech To Hyd Cam Adv/.050” Durations

Solid Vs. Hydraulic Lifters - Mopar Muscle Magazine - Hot RodLooking for verification that when comparing a mechanical cams advertised and @.050” durations to that of a hydraulic “in general” an equivalent mechanical would have approx 10 degrees less advertised and approx 10 degrees more @.050” Example, my current 280 adv, 232@.050” hydraulic would be approx 270 adv, 242@.050” Seen one article stating as such, but not much else. Trying to determine how much bigger I’ll be going switching to a solid as best is possible considering how the advertised can be measured between companies.