Hrmm, spongy might not be the best idea for a wood that is well, naturally spongy.
That's part of the tone of these low-output vintage-voiced 'buckers, and it seems that it doesn't work that bad after all 
this
that's the point
it's smooth, but the clearest bridge pickup I ever had and has a ton of sparkly top end
I don't think it could ever sound muffled or muddy
it would sound quite tight through the OP amps, but doesn't sound like the OP is looking for something low output
I still recommend the cold sweat
it has a similar voicing, but much hotter, tighter and more cutting