Ah. Thank you!! CB4CBCBCBCBCB. threw me off.No, I mean CB as in "Classic Bass" - This was just how they were labeled by Keith Roscoe when he offered those pickups in their standard line of basses. I was told that they were more "open" than the stock Roscoe pickups, and that assessment was correct... I ended up pulling all of my stock Roscoe Pickups and replaced them with the CB's.
4-String Classic Bass BC Soapbar - BC4CBC - Bartolini Pickups & Electronics
Reading the description of the Cb I’d agree that FD3s most resemble that description.