Hi Calin Its an insert. I.e. you remove the existing bridgepins, route out an area big enough to hole the part and to an appropriate depth for whatever string bearing angle you want (perhaps flush with an existing bridge surface for example ?) and epoxy it in place. Quite probably it will turn out that only the front bridge pins need be replaced by the insert. Seems to me the insert will go hand and hand with Wapin installations. Since I've posted the idea its become public domain so anyone is free to take the ball further as it were... and no one can patent the idea. That means if it turns out to be a workable solution then anyone can manufacture and sell these... which means the best quality part will get bought. An alternative idea is to simply use double diameter bridge pins with the lower half (that half to be inserted into the bridge) having a large enough diameter to interface with the whole of the string diameter. Vertically installed, the strings again held in place (clamped) by a combination of sidebearing and a shallowing of the pin at the surface of the bridge. Hope this helps. Cheers RicB
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