I've got a 19" int stamp K isty symphonic at about 2600 gm...it certainly cuts...
Wow! 19" and 2600 grams? That is heavy. My 18's and 19's weigh between 1450-1800+ grams. My 20's weigh between 1850 and 2350 grams. Even my heaviest 22 weighs less than your 19". In short, of my 35+ rides. crash rides and crashes, not a single one is that heavy!