Chuck, Palardy, and Alan: Thanks so much for all your responses, they were very helpful.
I'm glad to hear it's not unusual to use a 2-way PWM splitter to drive 2 Jaguars from a single PWM output on the Digital Sidecar. That will help us avoid using up all the PWM outputs on the Digital Sidecar and thus avoid having to use two Digital Sidecars, which would mean using more room on our robot control board (already a bit squished for space this year).
Alan, I had forgotten that we received those two 2-way PWM splitter cables in the Kit of Parts. Thanks for pointing that out. Emphasizes that it's very common to do this. We found those two PWM splitter cables in our servo cable inventory, and I thought we must have purchased them at some point and forgotten about it.
Indeed, as you folks point out, moving to use CAN for the Jaguars would be another excellent way to avoid using PWM slots on the Digital Sidecar. We worked on doing that for a couple of days earlier this season, but even though we carefully read all the info at
www.luminarymicro.com/jaguar about using CAN with Jaguars, read the threads here at Chief Delphi on it, and carefully created the required adapter and cables using the approved DigiKey part numbers, we for some reason were not able to get the "bdc-comm" application to "see" the black Jaguar so we could update its firmware. We finally had to set the project aside so we could focus on building and programming the robot. However, CAN would be very cool, give us more Jaguar control, give us plenty of extra PWM slots on the Digital Sidecar, and provide an excellent educational opportunity for our team on an important and often-used industrial network technology, so we will work on CAN again in the off-season, and hopefully use it for next year's robot (if the rules still allow it).
Thanks again!