The Wilson K-2 is not well known, as far as I know. I found it on their website, not in stock anywhere.
I have had good results with 1 element (Underwood or B-Band) on the E wing of my bridge. I don't feel the need for "4 elements", as Earl's recent post about the single element Bassbalreit (sp?) pickup sounded great, but is no longer available - Wilson does make a single element version the K-1, and the Wilson K-2 has the ability to "fine tune" the 2 elements to somewhat balance the 4 strings in relation to each other (2+2), which should be adequate for my purposes. (I would like to have some control over the G side of my bridge sound...in a perfect world.)
Also - years ago, luthier John Peterson spoke of using a bright pickup on a dark bass, and a dark pickup on a bright bass - my Juzek tends toward the Dark, and I've always had an interest in the "Wilson..." line of pickups.
I know - TMI, again.
I have to go now, as the voices in my head are YELLING again! ............Shuddup!!!!
Thanks, Tom.