Hello,
Don't forget to add the 1976 Argonauts from Salem, Oregon, the 1977-78
Boston Crusaders, and the 1979-82 Seattle Imperials to your list.
I marched with the Seattle Imperials in 1979 and 80 and we used
matched-grip. We implemented a snare/tenor combination that absolutely
demanded matched-grip. It wasn't a frivolous decision. There simply
was no other option given the drum set-up. I think the discussion
of standard-versus-matched being simply a visual issue is a gross
over-simplification.
I haven't heard anyone mention the professional community nowadays which
is almost exclusively matched-grip. The mechanical advantage of matched-grip
makes standard-grip an anachronism.
My observations are that Drum Corps has become strangely conformist over
the past 30 years. The 1970's were a very progressive era for the activity.
This universal regression into the use of standard-grip is perhaps a symptom
of that?
Anyway, it's something to think about. If things ever get interesting
like they were in the 70's then the choice of grip might become an issue
again?
Just my two cents.