I joined some friends and started jamming, the style settled to some heavy doom style metal, so downtuning is necessary. I didn't want to mess with my 4string stingray and warwick infinity so I decided to buy a low cost bass that could do the trick. I bought an Epiphone Thunderbird Pro-V for a killer price online (2nd hand), to later find out that the pickups and electronics are crap and the low B sounds awfully weak! The problem is that the pickups are very small for a 5string and can't find something at that size. After some search on the bartolini site I found a 4string pickup that is almost the same size as my Tbird's (Epi: 38mm x 90mm, Barts: 38mm x 89mm). Does it matter that they are listed as 4string pickups? Will the bass sound good?