My take on the oiling system crossover tube for the small block

I used to run my motor the way you described with the driver side dry.
With my current build I am trying a set of these new roller lifters with bushings instead of needle bearings in the axles of the lifters. These want a little bit of oil. I have bushed the block both banks and the lifter bushings have a .030 feed hole. I have run a jumper line over to the drivers side.
I am also front oiling the passenger galley as you have said(externally on an X block). Now imho front oiling completely
Eliminates velocity in the galley because of opposing pressures.

As I have said in another post, I believe all three methods essentially achieve the same thing to improve the distribution to the main bearings from the galley.

I agree, if pressurized oil is needed in the left galley, a crossover or some other method of achieving that, is much preferable to taking oil from #1 main to supply it. With a system where oil is also fed in the front, a crossover plumbed at the center of the right galley would help insure the mains remain the priority.

.030" is a big hole. Did the lifter manufacturer recommend that?