Not that big of fan of 'bo5' as a spectator, mostly because we see fewer shot patterns these days. We see fewer volleys, lobs, passing shots, half volleys, fewer spins than in the heyday of 5 setters. Without that all that variety, tennis can become too repetitive for bo5 to remain interesting for 3-4 hours. I see no point in extending the length, if we are not extending the enjoyment of viewers. Remember its not just the players that are hanging around all that time match after mathc, so are the ballboys and girls, each of the linesmen, and the referee. And they will be doing it in inclimate weather, and with climate change, temperatures are getting higher both in the stands and on the courts, we are actually taking increased risks with heat exhaustion and dehydration.