From Wikipedia (search for Fender VI):
"In 2004, Fender issued the Fender Jaguar Baritone Custom (later renamed "Jaguar Bass VI Custom"), which is more or less a combination of the Bass VI and the Fender Jaguar. The Jaguar Baritone Custom uses the same string gauges and tuning as the Bass VI, but differs in that it has a Jaguar-shaped body, two pickups with Jaguar-style switching options, a fixed bridge, and a shorter 28.5" scale length."
So, if standard strings still play ok with 28,5" chances are that nothing will really happen if you detune your bass. Just try and be the judge. Maybe you need higher tension strings, but that is all.