only 37, so cant guarantee the answer is right, but:
canni 2 more efficient (marathon mana)
- soloing
- main healer in groups
canni 3 less casts (sprint mana)
- buffing
- groups as not main healer
Can you get by without canni 2? probably. Is it worth getting? definitely. read through this thread for people that have tried without canni 2 and their impressions:
http://www.project1999.com/forums/sh...d.php?t=118326