Personally I found that to get the best out of the vibrato mechanism you need to stick with the lighter gauge strings that the bass comes with. Unfortunately I didn't like the feel or sound of the light gauge E or A strings for playing "conventional" bass parts and fitting Newtone Axion strings which sorted out the E and A rendered the vibrato mechanism almost inoperable.
I eventually gave up on the Squier Bass VI as there were too many design problems that got in the way for my playing, most notably the very narrow neck. I upgraded firstly to a Burns Barracuda which suffered from the same string gauge/vibrato mechanism compromise but had a wider neck, and finally to an Eastwood Hooky which has the best neck width for me and no vibrato mechanism for me to be disappointed about.
As someone who also plays guitar and owns two with very usable vibrato systems, I found the various mechanisms fitted to the commercially available Bass VIs far too subtle even with the original light gauge strings fitted. Others seem to get on fine with it, even with heavier strings. The only way to be sure is to try it for yourself.