Re: Can I put an A5 in an Invader???
It can be done pretty easily -- but keep in mind that the Invader bridge model has 3 magnets in it, not just one. Two skinny ones on the outside and the standard-sized main one in the middle like other humbuckers.
As for whether an Alnico 5 will make it brighter, I doubt it because ceramics are brighter than any Alnico. One thing that might help is to remove one of the skinny magnets -- the one on whichever side is facing away from the bridge and toward the neck. The harmonic node this coil sits under is beefier and removing that magnet will de-emphasize it and thus emphasize the other coil more which sits under a brighter harmonic node.
I am considering grabbing a neck model Invader and trying an Alnico 5 though, or even a 4, 3 or 2. It's only 7.2k which makes it a totally different animal from the 16.8k bridge.