Paul, Jim and Jon, thank you for the additinoal comments on VS Profelt. Clearly it doesn't do much for worn centres! What a very interesting suggested, though, about trying it in compacted hammer grooves for voicing. I've been using a hypo-oiler recently to apply Protek CLP to string underfelt on some older grands, and I find that quickly running my fine hypo-oiler along each string leaves a very fine line of CLP which quickly wicks in under the string. I imagine that it might work similarly if carefully applied to hammer grooves with VS Profelt. I'll have to get some VS Profelt to try it out! Thanks again, David.
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