I used to have scrapes on the top of my pinky knuckle from jerking a sharp usaeka bar without having my pinky under it. I've jerked 140 kilos off the racks but I can miss a 100 power jerk because I can't get enough under the bar and it loses momentum before my palm catches it. My lines just aren't very good on this movement.
That said, I'm not complaining, my total was 240 at the last meet and I'm 34 years old with only a couple years experience. I just know that yall are real scientific on this board and may have some suggestions or techniques regarding stretching. I would like to have less wrist pain from lifting but maybe I'm just being a puss.