Re: tremolo technique
FWIW, I do not recommend planting the pinky on the top at all for any kind of picking. It might not be too bad on a pick guard, but not the top. I can control my tremolo better with the end of my wrist ( mainly the heel of my hand) resting on the strings just behind the bridge. For regular picking I either leave my entire picking hand free or rest it as described above. I do it, as I said, for control.
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