I haven't tried the collet. The fundamentals and simplicities of technical matters have always influenced my thinking much more than the frills and variations -- so my thinking on this question starts with these fundamental facts:
<br>(a) Bushings don't change -- collets change.
<br>(b) Bushings are therefore more consistent than collets.
<br>(c) Accuracy depends on consistency.
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<br>Beyond that, I can't begin to guess which would be preferable or why. I await enlightenment.
