Xue Sheng
All weight is underside
Hitting trees was part of my Police/Military Sanda training. But never a fist, always palm strikes and there is a specific sound you are looking for or you will hurt your hands. My sifu also hit trees with elbows, kicks and knees, however I was never brave enough to do that. As for the palm strikes, it is a type of iron palm training and it actually cleared up some issues I was having with my hands at that time. However I do not recommend doing it without being trained properly by someone who knows what he is doing, based on his/her proper prior training.
One of my Xingyiquan teacher's teacher, use to hit trees with his forearms, and I have been told his forearms were rather hard and he could hit very hard with them, however it did leave permanent marks (scaring) on his arms.
I draw the line at palm strikes. It can also be done on walls as well, but it needs to be done properly or you WILL injure yourself, possibly long term or permanently
One of my Xingyiquan teacher's teacher, use to hit trees with his forearms, and I have been told his forearms were rather hard and he could hit very hard with them, however it did leave permanent marks (scaring) on his arms.
I draw the line at palm strikes. It can also be done on walls as well, but it needs to be done properly or you WILL injure yourself, possibly long term or permanently