Has anyone investigated placing the tow hook directly over(or under) the tow planes center of gravity?

I'm trying to envision what that would look like. To be at the CG, there would have to be as much behind and below and ahead and above. How would you rig this without hitting the tail on low or high tow?

Maybe 'over' the CG would eliminate above and below, but still don't see how.

Not seeing how, does not mean there isn't a way, so how do the RC folks do it?