I, too an 6'2" and I use a 210cm Cyprus, but also have a 220 Kalliste for those longer days. The primary difference is in the intended paddling angle. My concern with the longer paddle is leverage. With bad form and a long paddle you can increase the odds of doing damage to your shoulder. Conversely, you can hurt your shoulders with a high angle paddle as well.

Hm, seems like both paddles are good paddles with slightly different intended paddling angles and purposes. Who'da thunk it?