Also, I think _tom_ has a good point that some of the lower-output BKP models are perfectly viable for Opeth.
Opeth themselves use Duncan Full Shreds (you can see the FS neck in Peter's PRS on the second clip) - FS is a pretty pokey neck, but the bridge is a bit weedy. Not that I'm saying the Mule is weedy, but a Painkiller it ain't (I don't yet have a Mule BTW) :)
A lot of Opeth's high gain riffs use strummed full chords with no palm muting, so a more open, percussive, dynamic bridge pickup is possibly a better choice than a fire breathing beasty :)
However, you've already got a Miracle Man so it's a moot point... :)