wristpin oiling issues

Some people close off the lifter valley in an effort to make more power at the crank, since the rotating assembly isn't beating through the oil.

I'm wondering if this causes troubles in other areas, the lifters aren't oiled as much and maybe other parts, such as wristpins?

Assuming the wristpins rely soley on splash oiling this seems like a bad idea, maybe the splash comes from the oil coming out of the rod bearing area?

I'm talking BBC.

 

Modern racing pistons are drilled from the oil ring to the wrist pin bore.
Makes a sort of pressurized pin oiling system. Works good too.