I'm an aspiring pickup maker and I'm shocked to see that even though more and more basses are being made with Bartolini MK-1 pickups that there are very few options for replacement pickups. I've owned a few basses with these pickups and they're not bad, but is that really what you want in your bass - pickups that aren't bad? I know you can use Bartolini BC shaped pickups (Nordstrand and others) but there are gaps around the pickups because they're not the same size. If I were to make replacement pickups in this size what would you want? Please PM me your responses, if you don't mind.