Hey brothers and sisters.
After purchasing a SF-2 filter I am now going to add a fatboy pick to the mix. After doing a lot of research on here, looks to me like the best thing to start with is replacing the stock Spoiler bridge pickup with a fatboy and then take it from there. Quick question, how do I go about purchasing one....phone call to the mother-ship? Thank you.

Yep thats the way to do It, I called Mica and got mine Signed, Sealed, Delivered and Mine.

Sweet, thanks jazzyvee !!!!

These go for around $250 each correct?

Craig, be sure when you visit with Mica to give her the width of the AXY you're replacing:  They come in two sizes, one for four strings (or for fives in the Classic Taper fingerboard width), or a five/six string shell size, for the wide fingerboard width.  
 
When I bought my replacement FatBoy, I told them it was a five-string, and got the 5/6 size, oops, my bad.
 
Joey

Thanks for the heads up Joey!!!

How are your Superfilter explorations coming?

They are going quite well, more to learn though. At this point, I find a nice tone starting in High Pass Filter Mode...settings on the Thunder Low, clear highs positions and then tweaking it from there.

Just installed the fatboy in bridge position...love it. Also it was so easy. I am looking to sell the AXY4. Anyone know a reasonable price to ask?
thanks for ALL of your help. Alembic rules the world of bass.