I'm thinking hard about that. The Raspberry Burst has rounds on it and the Burnt Ends has flats. The thing is that I'm such a died-in-the-wool flats guy that no matter how hard I try to keep rounds on a bass, I always end up changing them to flats.
So bottom line is that eventually, I'm sure I'll put flats on the Raspberry as well. About the only compromise I'll probably make is that I'll probably put on a different brand of flats than the ones on my Burnt Ends.
My flats of choice the last couple years have been DR Legends. That Burnt Ends HH has that sweet sound that just makes me smile. So I'll probably put LaBella DTF's on the Raspberry. I know that sounds ridiculous to most people (having two of the same bass), but I have a couple Jazzes and Precisions - all wearing flats.

It's just the sound that I like.
I alternate my basses daily. So if I play out somewhere it'll probably come down to what color shirt I'm wearing...