[pdftex] microtype / tracking / ligatures - question

Fri May 2 21:22:29 CEST 2008

dear all,

(i hope this is the right forum to ask this question.)

i have added a small amount of inter-letter space for small font sizes
through microtype:

%microtype
\usepackage[tracking=true]{microtype}
\DeclareMicrotypeSet*[tracking]{mytracking}
{ encoding 	= *,
size 		= -small,
font 		= */*/*/sc/* }
\SetTracking{ encoding = *, shape = sc }{ 10 }
\SetTracking{ encoding = *, size = footnotesize }{ 15 }
\SetTracking{ encoding = *, size = -footnotesize }{ 25 }

this seems to prevent ligatures from being used in small sizes. that
makes sense to me for ligatures of ff, fl, ffl, etc., but i was
wondering if there was a way to keep the "hyphen ones", -- and ---.

i know i can use \textendash and \textemdash, i was just wondering if
anyone knew of a different way, preferably one that involves less
typing / remembering.

thanks,
jan