Hello Andrew You wrote: "Most of the tuning pins tightened up adequately upon driving. The deep bass ones did not. They would detune (turn) as they were played. I was thinking of doping them ..." One problem with putting in a thicker pin is that the string tension will have more leverage to pull the pin round. You could try inserting bridle tape in the pin hole and replacing the old pin with a NEW one of the same size. Old pins get gunged up on that rough surface and simply don't hold well. You can also get alloy sleeves to bush the hole with - but I'm not 100% happy with them. Regards Michael G (UK)
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