Comparing Mech To Hyd Cam Adv/.050” Durations

That's just not true. A tight lash solid will blow the doors off a squishy hydraulic all day long and twice on Sunday.
I don't claim to have your experience in this area but from what I read you're looking at 3 to 4% power Improvement on top with a solid flat tappet with a good hydraulic almost equal in torque in a moderate built engine