Bags vary as to what they are packed with and some old ones are naturaly packed down even tighter over time and can be like concrete.


I cant remember which old heavy weight it was I think Holmes,but he became gun shy in the ring from an old heavy bag that hurt ,so he changed down a size and found he could bang even harder in the ring because of the change.

Hold a stretch on your wrists too, hold your hand down into a wrist stretch and then up into a reverse wrist stretch and then shake them out and revolve them to warm them joints up. Then go at training ,make sure you dont hit the bag harder when your getting tired and sloppy,so you always keep the back of your hand aligned with your forearm bone .