Mxsmanic,

Apparently "moment" and
"arm" are synonyms (?).

Dammit, learn to google and wikipedia, if you don't remember this
elementary stuff from school (you did go?). Moment is arm times weight.


I guess the manufacturer doesn't say exactly what point constitutes
neutral trim.

The manufacturer gives a range of allowed arm.

--
Thomas Borchert (EDDH)