there is a lot more force on the end of the bo when you are working with 4-5 ft in front of your hand than when there is 3 ft in front.
I train with bo and jo staffs, 3 times a week each. You're ferrying coal to Newcastle, brother.
Some of the techniques being described here require
dan tien rotation, which is a full-body windup in the vertical (up and down) rotation, as opposed to the more traditional Okinawan side-to-side hip movement, so we're getting pretty far afield.
A more simple tip for cane users is to work on keeping the hands fairly planted on the stick and generating the movement of it through the body. That is, the arms don't swing at the target, the arms stay mostly stationary where they are, and the torquing, swinging motion of the body delivers the strike. "Hit with your hips" is the ticket.
When you do all this right, you'll find that very little muscle is needed. The beginner tends to try too hard, and the real trick is to let the cane or stick do the work. It's more about leverage than swinging speed.
It isn't a baseball bat. It's more devastating to do things like fit it under the armpit, hook the chin and neck and rip backward. The sucker will go down hard with very little effort.