We’ve searched the rules, but can’t seem to find a limit on the amount of Jaguars (Grey or Black) a team can use. So, anyone care to shed some light on the limit, assuming there is one? Please and thank you 
The limit is whichever is least of how many you can fit in your size or budget constraints (probably budget).
(4 CIM + 4 Banebot + 4 Window Motor + 1 FP)
Art,
That is not a limit imposed by the rules as far as I can tell. I see no rule preventing the use of Jaguars to contol a custom circuit, as ballast, or as preinstalled spares. While it is extremely unlikely a team would want more than 13 I don’t see a rule limiting them to that number.
My mistake. For some reason I thought that non-functional electrical decorations has to be powered by a Spike. Then again, the last time I was involved with wiring or electrical on an FRC robot was 2006.