> Assuming that the bushings are truly effective, then the pin >bending in this case should be no more than for an open face pinblock >arrangement. In which case, the closed face design with tuning pin bushings >would have the lowest deflection (would be the stiffest) of all. Hi Phil, Not exactly, since the bushing isn't as rigid or resilient as the pinblock. The stiffest would be the open face (minimum free twist, minimum flex), followed by closed face with bushings (low moderate free twist, minimum flex), with closed face without bushings being least stiff (maximum free twist, maximum flex) - unless they're leaning on the plate (near maximum free twist, minimum flex). Ron N
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