<HTML>In a message dated 3/31/03 5:41:51 PM Central Standard= Time, lclgcnp@yahoo.com writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT= : 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">So I scrubbed away, lubed with = Teflon (TM) powder, and it feels quite nice now.  But it made me wonder: Would not actual tiny rollers in place of the standard knuckle work much better? Out of some material just soft enough not to click?    I envisioned much less friction, no compaction, etc.. Has anyone ever tried this?   Del?   Thump </BLOCKQUOTE> You need a certain amount of friction. Otherwise the jack will be be able to= push the shank up to the string. It will slip out too fast. And besides, if= you ahve a roller, it means another moving part that will need to be repair= ed. Wim </HTML>