4WD will bind and hop, but it will not cause the spinning that happens with AWD. The binding and hopping really only occurs at extreme turning angles and is extremely minor.
Torque vectoring is very good, but it’s not perfect. It require slip to detect and react. The problem is you cannot detect slippage when a wheel is completely stopped, so you have to let it spin at least a little bit. This is what causes excessive single wheel rutting.
It can also create unpredictably since you need to wait for a wheel to spin before it can kick in. Notable, if you need a lot of power, this can cause and extremely harsh jerk that does not happen in a 4WD system.
I've done Toyota Landcruiser, Toyota Tundra, Subaru Ascent, Subaru Outback, Subaru Crosstrek, Chevy Silverado.
I don't do crazy cliff stuff on them, I take my dirt bikes and quads on gnarly terrain.
The Ascent has impressed the hell out of me. Two wheels off the ground at 30% grade (40% on one corner) getting up a winding switchback in the Smokey Mountains.
If I got a citation from the National Park Service, I'd be pretty danged annoyed, and lose a lot of respect for the sensibility of the organization.
4WD will bind and hop, but it will not cause the spinning that happens with AWD. The binding and hopping really only occurs at extreme turning angles and is extremely minor.
Torque vectoring is very good, but it’s not perfect. It require slip to detect and react. The problem is you cannot detect slippage when a wheel is completely stopped, so you have to let it spin at least a little bit. This is what causes excessive single wheel rutting.
It can also create unpredictably since you need to wait for a wheel to spin before it can kick in. Notable, if you need a lot of power, this can cause and extremely harsh jerk that does not happen in a 4WD system.