Some of these knobs are harder to take off than others. It depends on the amount of loctite applied and other conditions.
I couldn't remove mine without destroying it. I used a channel lock to hold the shaft in place and then used a basic rubber strap wrench to twist the knob off. Well, the strap wrench generated so much torque that it literally squeezed and warped the knob enough to separate the leather on top.
But it gave me an excuse to buy a replacement
