I've been a big fan of Bill Lawrence bass pickups for decades and I still think their P46 is the best sounding P that I've ever played.
I had a problem, and some of you have too, using the P46 in a 5 string bass. The way the coils are constructed, and using them on a 5 string, the A string passes over magnets on both coils making it much louder than the other strings and there is no way to balance it out. This first happened to me using a P46 in an MTD P bass and I had to remove and put the stock pickup back in which sucked.
Another member of TB plays an Ibanez Mezzo 205, like I do, and he was having the loud A string problem like I did.
We talked about it and I went to Becky Lawrence with an Idea to lose a magnet in one coil to create space and eliminate the volume problem. She pushed back at first, saying she had never heard of it being an issue, but was nice enough to make one for me. I received the new pickup Friday, installed it, and it sounds absolutely great and is a perfect match for the J45 already in my bass. I'm encouraging her to make it an option. If you are in need reach out to Becky or her daughter Shannon on their web site and ask if they will make you one. I can attest that they are dead quiet, sound and balance perfectly, and are half the price of a comparable sized Bartolini or Nordstrand P for 5.
To be clear, this is for 5 string basses that use standard size P pickups, not the uneven coil sizes used by Fender, Yamaha, Sire and others... which do hum due to the different sized coils.
Photos as installed and measurement space for string excursion over the coil

