Hi,
I'm looking for ways to improve my Ibanez BTB475

. At the moment it is all standard (monorail 2 bridge, Bartolini mk2 Pups and EQ). I have looked at getting some monorail 4 bridges for it but don't know where to get them or if they would fit in the existing holes for the bridge.

I would like to avoid routing extra space in my guitar if possible. Please no suggestions of "Buy a different bass"
Thanks,
Tom
