-A question for the Low tow advocates . How do CG hooks fare with low
tow?

A: No issues I am aware of at all.

-Does the rope tend to pull to one side if some slack develops?
A: Never saw slack in a rope on low tow, but, no.

-If there's a rope break in a low tow are you not in a worse position ?
A: Practiced a fair amount of them, never had an issue. It is really less than a wing span difference in altitude from proper high tow, to proper low tow.