I just called Hipshot to ask a couple of questions about the A Style:

And B Style:

Bass bridges. Their Vintage bridge is, of course, a five hole direct Fender replacement, but Jason tells me that a five hole B Style is already available and he hopes to have a five hole A Style out by the end of the year! I may be the only one excited about it, but I just wanted to share. I'm thinkin' bout grabbing an A Style for my Jazz as soon as it's available.