I try to hover the puck to save it. Once the puck touches I lift slightly to hover above the ground.
The guy I ride with plants his knee and burns through sliders.
He has a solid argument though, his knee on the ground saved him from low-siding. So to me if people wanna drag around until they burn leather that's fine with me, just don't fall down in front of me lol
I drag less knee now than I did 2-3 years ago. But not because my body position changed (it really hasn't) but because I became a lot better on corner entry (braking) and exit (getting on the gas) to improve my speed when before I was using a lot more lean angle for more of the turn to compensate, which meant my knee was on the ground for more of the time.