The wire guage is a non-issue at the power levels most HD's run at.
And because you're not runing splitters, and instead clamping the SATA power connectors directly onto the cable, you're not introducing more resistance onto the chain either.
I don't see any problems at all.
And because you're not runing splitters, and instead clamping the SATA power connectors directly onto the cable, you're not introducing more resistance onto the chain either.
I don't see any problems at all.