There's another thing I noticed... Emerald neck has 9,6KΩ, more than PRS 59/09 Treble bridge, that's 9,3KΩ. Shouldn't neck pup *never* be more output than bridge? By the other hand, The Mule is 7,3KΩ, just as the Paf 36th that I actually have. The original 59/09 Bass is 8,4KΩ.
EDIT
The Mule bridge has a DC res of 8,4KΩ, the same as 59/09 bass. What does it change between neck and bridge pups? It's just the DC res? If you look at the Mule page on BKP website, you'll see just one eq chart... does it mean the the 2 versions share the same eq? If so, shouldn't be a bad idea, putting a bridge version in the neck position, if the DC res is well-balanced with the birdge position, right? Or am I missing something?