If you're looking to save bandwidth on the CAN bus consider using Periodic Status for each JAG. Configure each JAG in begin, and then you ask each JAG in teleop to obtain it's most recent cached status update.
Be aware, there is a minor bug as described here:
http://www.chiefdelphi.com/forums/sh...d.php?t=103629
Also consider, 128K for the Serial to CAN adapter, versus 1M using 2CAN and Ethernet.