Does anyone have one of these motorized units and they modified the shaft with the rubber to use something else besides the rubber? I recently got my unit and while I was trimming it bogged down on a piece of brass and when I pulled the handle the rubber that holds the shaft came apart. I ended up using some hose clamps and tightened it down really good, but I would rather have some kind of shaft that connects the motor and the trimmer together.
Looking for some ideas on how to make the shaft a lot more solid than it is now, I don't know why someone would design the device and use a piece of rubber hose to hold the two shafts together.