I can shoot a S x S to within about 4 or 5 birds out of a hundred compared to what I can shoot with my MX8, on a medium to high difficulty course. I'll believe until I die that there is an advantage to the O/U for tougher targets, but like Ted I don't claim to know why.
Soft targets ....... I can shoot the S x S just as well.
SRH
First ejectors, and now you admit to owning a stack barrel. How the mighty have fallen. I shall pray for you, brother Stan.
ps. If you own a gauge other than 16, please don't tell me.

Mike