My Eastman E1D came with the "appearance correct" Ping "Waverly" style tuners. They seem to work just fine. On my electrics, I almost always swap out the Klusons or whatever for the Rotomatics. More mass at the headstock for better tone and sustain - anyway, that's the conventional wisdom I grew up with. I have the "bean" style buttons on most of mine. But I don't have any real experience with acoustics. Does the same idea hold true? The tuning ratios are the same, so nothing gained or lost there... You guys steered me into the right guitar, now tell me if there's any benefit - or loss - with a change of the tuners. These or them? Thanks!