As I wrote a while ago, the low E on my Mini sounds warbly with 45-100 Chromes. As an experiment I tuned it up to A and it sounds just like my A string, i.e. fine. So I know my strings are not duds, it's just that they're so floppy that the E has trouble sounding good. Unfortunately there is a shortage of gauges for short scale flats. This is where the Bronco comes in.
My reason for wanting a Bronco (besides foaming at the mouth like a rabid dog for the Shell Pink version) is that it can take every brand of flats out there due to the more conventional 30" scale, without fear of strings wrapping around the tuning posts and snapping. Another issue is the tiny tuners that grace the Mini P and the Bronco. I've cut down long scale Chromes for the Mini and while the A, D and G were fine, the low E wouldn't even fit in the hole.
Labella makes all kinds of fat gauges in the 30" scale but they're hard to come by and really expensive.
Roundwounds are out of the question. That's what Jazz basses are for and I'm already covered
Ah...first world problems...