Natty, I don't think allowing your synchros to do their job is really going to hurt them (unless they are already damaged). Really the only reason to revmatch is to be able to downshift quickly w/out upsetting traction.
If you haven't already read
THIS article on heal-toe downshifting/double-clutching. Thats how I learned how to do it.
Edit: DrB, some people actually do say that, when the clutch is depressed its compressing the clutch spring, thus makeing it weaker and some BS like that <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt='
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