Long story short, I had a JB/Jazz combo in an LP standard (my main guitar) for years, and the JB never seemed quite right. I put that combo in thinking that it was "industry standard" and I couldn't go wrong, but the feel of the JB was always kind of harsh, like punching a brick wall if that makes any sense. I just switched it out with a C5 last night and went to rehearsal, and it was a definite improvement!
It feels a little mid-scooped, but not nearly enough to not cut through the mix. The JB cuts more, but not in a good way IMO. The C5 also bonds with my Wampler Plextortion pedal very well, and the coil tap sounds pretty good (it doesn't with the JB). In all, I'm a very happy customer, and wish I did the swap years ago!
I have a PGn on the way too, and can't wait to install it. These new pickups are breathing some new life in my main axe!