Stiff knob

Dear Viz,

For some months, my knob has become increasingly stiff and when I hold it, I can’t make the smooth circular movements that give me most pleasure. So, when the time came for a re-string (every 18 months or so) I took the opportunity to lube up my knob using WD40 and it now works like a charm, all stiffness gone, it sounds like a Stradivarius as I “do an Akkerman” with it.

Relieved of Sheffield