"A self-cut groove at the thumb-hole" (me)..."That's genius, WaV - it takes years to wear one in manually, even on a wooden one. Little wonder you have such a unique sound." (Smokey)...hacksaw blade; and it's just above (Jack C.) the hole so I can tilt, rather than lift, off my thumb.

"Wavy, you have no technique, nor yet do you have any musicality to speak of, which this absurd and grotesque video makes abundantly clear. That you posted it on You Tube in response to This underlines the full extent of your bewildering delusions." (IB)...subjective..as are opinions of your exotic accompaniment of E trads - I, for one (aesthetically as well as politically), much prefer it when you sing UA.