Anyone know how to adjust the friction of the MK3.1 focus wheel knob? I've read these instructions https://support.teradek.com/hc/en-us/articles/360006828294-Can-I-adjust-the-feel-resistance-of-the-Focus-Knob-MK3-1-Controller-ONLY but my 2 screws inside the knob do not come loose, or cannot be tightened. They don't go anywhere. I do not want to force them. The instructions also suggest using a 1.5mm hex/allen key but a 1.5 hex/allen key swims inside my screws. When using a 1/16 hex/allen key I get a good tight grip. Anyone know what I might be doing wrong?