I'm with you all the way in the Caprice. It surprised me too. Which set of Hipshot Ultralites are you getting? The Music Man's require a specific set because if the Undersided key positioning of the G string. Gotoh actually make really nice light weight keys.
I put a Hipshot BT1 on mine. There is a tiny little bit of neck dive that scared me when I first strapped on the bass (I abhor neck dive), but once I started using it I don't even notice it. I'm not sure if I'd even call it neck dive, more like it just doesn't balance perfectly.
I've played a little more than a dozen gigs since I got mine, and haven't had any urge to use any other bass. Should note that I own a P, a Jazz, a Ric, a Jag, a Bongo, Stingray, Big Al.... and I could keep on going. I LOVE the way this bass feels. It just hangs right on me, and the neck is super ridiculously fast, smooth, and comfy.
I have to be honest and say that I don't really know (even after the 12+ gigs) what this thing truly sounds like yet, so anything I say regarding that must be taken with that in mind. In my new band I'm not using my regular amp, nor playing at volumes I'm accustomed to. I'm also using IEMs, so that's pretty much what bass I'm hearing. My bass sound is sadly no longer mine, it's our soundman's and whatever he works through the front of house - which I never get to hear. Still have to work this out...
What I can tell you is that it seems a bit more aggressive than my Fenders, and a touch warmer sounding. I favor the neck pickup more than the bridge, and it's the opposite with my Jazz and Jag basses. I'll add too that it doesn't really mimic a Fender to me. It's not light years away, but it definitely has its own sweet character to it.
I'm loving it, and not going back to any of my other basses any time soon.