... and they're in :D
This is tough as I find it very difficult to describe small changes in sound. The overall sound change isn't huge, the Baja's stock CS pickups are above average, so things were never going to be night & day. The first thing that strikes me, I was expecting a drastic drop in output (due in part to the AIII magnets) and was prepared for a weaker (but warmer) sound. Not the case, I find the CB's to be only slightly less aggressive than the pickups they replace. This maybe down to 'feel' rather that 'measurable' output. Some folks might be put-off by the name, any idea that the CB's are wimpy is totally wrong.
The CB's are sweeter and have a 'roundness' in them that just shouts '50s Telecaster. It also takes a little edge off the 'ice pick', not removing it (that would mean it wasn't a Tele any more). It's like it smooths it, making it more pleasant :) You could play any style of music with this set bar Heavy Metal.
The neck is interesting, the 'Twister Tele' that it replace has gained a reputation for one of the best Tele neck pickups (one went on ebay for £60 the other month) and being very strat-like. Well IMO the CB neck is quite similar (as with the other position) but sweeter and warmer. Those who think Tele neck sound terrible should try one of these.
I've currently got both pickups at 3/32 treble and 1/8 bass, which I think is Fender's recommended settings. Not sure if I'll experiment as they sound good at this setting, all advice welcome.
The poles on the bridge are flat. I've only played though my Cornell Plexi 7 so far.