Now that I've got a good bass to play 90% of the time, I figure it is time to upgrade the 506. I would like to replace the bridge with something like an ABM, with drop in string loading, and I want to find out from people who have these - do they let you put in a larger string gauge of traditional wound strings, or do you have to stick with taperwounds for large B strings? Also, what pickups would be a good drop in replacement for the ADX6 soapbars, and what preamp would be a good match for the pickups? I love the neck on this bass, even though the string spacing is a tad tight, the neck fits my small hands well and, unlike some Ibanez' I've heard of neck problems with, the neck on mine is very stable. But I want a better bridge, the stock one is just a step up from bent steel, and the holes in the end are too small for anything heavier than a .125 B string. And, I want better, more even response than the stock pickups deliver. With these upgrades, I would probably leave it at church and play it all of the time there, and save the Pedulla for gigs.