I feel the members at RMGC didn't know what they were really in for when a redesign (it's not a restoration, more a reestoration) was decided.
To me, all they needed for the Presidents cup was 3 or 4 new tees, and renovate the fairway bunkers. Royal Montreal was great for its angles, narrow and deep greens making for small targets and rythm of the course.... all that is gone.
1997: Length 6750 par 70... winner -5 (4 inch rough that year)
2001: Length 6900 par 70... winner -16 (rough a grandmother could play out of)
it was a MATCH PLAY event, put the course at 7000 just to say so a let the players play.