I concur on the slightly high aspect.
Heres what I said a few hundred pages ago:
Ive got several vises in my shop, all at or close to elbow level. I do agree that as things get more detailed there is benefit to being slightly above elbow level, for normal work at elbow level, and for heavy work slightly below elbow level. While its a very personal thing elbow level is a great place to start, from there put some time on it and modify to suite or have multiple vises at varying heights. Typically we are talking a + or - 2 at most window. Comparing extremes look at the work height of a blacksmiths anvil and watchmakers/jewelers/engravers work height. As work gets higher youre giving up mechanical advantage for a closer view, more control, and faster shoulder/arm fatigue due to upper body position and tension.
If a guy spends 40hrs a week at a workbench whom should tell him what works...after thousands of hours hes figured things out.
My main vise is a vintage Rock Island No.52. 4.5 jaws with 9 opening, swivel base, and swiveling rear jaw.
Ill add that it is mounted about 1.5-2 above elbow level with a relaxed stance.
