I have said it before but I'll say once more . The rim on the dumpster has made my Stomach core strong , I remember 3 years ago I would get on the rim slowly 10 seconds later i was grunting holding my breath going ammmmm eye balls popping - NOW I jump up land on the rim no grunting I breath normal and yank out hevy items.
I was recently Kicked in the Stomach and did not feel it at all But thats a story for a PM only.