Quick hand guide and then a disclaimer.
Hands low: takes the “power” out of your hands. Wheel is primarily turned by “pulling” down and towards body.
Hands high: Here your arms become poles almost and you are more braced to the wheel. Your ability to influence the wheel is very powerful. Your arms become the lever in an Archimedean sense. Small inputs have big effects.
Hands in between: sorta both.
So what’s correct?
Sorta whatever you need when you need it. Personally, I move my hands around quite a bit. But I am comfortable in my driving and am doing things for a reason.
Maybe I am nervous and overdriving: I take my arms out of the picture, I hold the wheel super lightly.
Maybe there’s a turn I set a certain angle at entry and it makes sense for me to have hands high there every time, but then I shift to a neutral position.
Sometimes I get tired and my arms need a break and I drive more with my feet.
Anyways, it can vary.
But yeah, a neutral normal 10/2 with you more pushing into the wheel, rather than pulling at it, is the general idea.
If you want to get a good understanding of this go into a sim you are competent at. Drive with only one arm until you can do laps at pace. Then do same with non dominant arm.
You will very rapidly understand a whole bunch of stuff that would otherwise take a while to explain,
This is probably not the recommended way to go about this. Generally, my coaches have found this behavior perturbing. But, the student persists. So, there must be a reason. It might be old age and pig headedness but I don’t think so.