The 74 is heavier, longer, and optimized for the extra power. It was built for racers who were stressing the rv200. If the prettiness of it beckons you, go for it....but don't be surprised if you're slower than your buddy in an identical plane.
1,235th flying RV8
SnF Homebuilt Judge
2015 Sun n Fun Kit Built Reserve Grand Champion
2015 Oshkosh Kit Built Champion
2015 Jeffco Kit Built Grand Champion
2014 Oshkosh Outstanding Workmanship Award
Broken Warrior of the Jarhead Clan