I rarely use a capo, but I have several. When I saw my son-in-law using one on his Tele , I was surprised to see a flat finger board capo working just fine. It was a standard straight ‘Shrub’ but at some point I had inserted 2 card shims to make it work for a curved finger board. Then I had an idea, if Shrub made a rubber strip with a straight side and a curved side I would only need 1capo. (The rubber strips pull off easily) Has this been done, or should I patent the idea? If someone on the forum work for Shrub and it turns out to be a viable product, please send me 10p per unit sold Thanks
There are exceptions, but basically your talking about flat polymer guitar fingerboards and fingerboards with a radius , steel strung . Most flat fingerboard are also wider than ones with a radius . Shrub are not popular with classical/flamenco guitarist. It's not a bad idea , but your be lucky to earn enough to tip your barber, rather than the whole cost of a hair cut.