Any one interested in the oiling mods I did?

Phreakish said

The crossover is only there to get oil to the opposite bank without having rob the #1 main, and it works for that.

Getting oil there is necessary for oil thru lifters, hydraulic or not. Look at the size of the tubes used on those vintage builds - it didn't rob much oil from the primary lifter galley that's for sure.

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That is not even close to the explanation of what a properly implemented Atherton/ Bob Mullen crossover is claimed to do.
I have seen all kinds of crossovers, anything from braid line with 90 degree aero quip fittings. That's why I said properly implemented.
The Atherton crossover requires precise exit and entrance angles.
It is claimed that these angles precisely channel a certain amount of oil to the drivers side to slow the oil speed on the passenger side to better allow the oil to make it to number four main. Not just any old crossover will work.