MEC "vintage humbucker" streamer pick up (M RB 60160 4P AB45) magnet swap/replacement

[Danage]

I'm going to put this here, just for the sake of information should any ever have a desire to do the same thing. I swapped the magnets out on the aforementioned pickup, replacing the ceramic magnets with Alnico 5 to see what the difference is. To summarise, the output drops noticeably, and the main voice of the pickup moves up somewhere around the 1k range (to my ear at least). It starts to sound a bit like a Precision Bass pickup, but with less bottom end. I think a lot of the output in this pickup comes from the strong ceramic magnets, rather than the copper wire. Anyway, he's some pictures of the process should anyone else be mad enough to want to do this. If you are, you'll have to look at bar magnets for 7 string humbucker pickups to find something close to fitting. The original magnets are 67x13x5mm, which seems to be quite non standard. I got hold of a pair of A5 68.5x13x5mm and ground them down.
 

[Danage]

Cermag LTD will make custom size magnets however you want... so I've ordered a couple of neodymium ones that will fit this pick up... will report back once I've tried those ones...