How is the Invader in mahogany?
I have one in a basswood RG1570 and I love it, but it's a very fat pickup, and I have passed up on using it in mahogany because I thought it would be way too muddy. According to the SD website it's eq is 7-bass, 8-mids, 4-treble.
As for a
neck pickup to match it, on the USA Jackson Warriors they use a SD Full Shred neck with the Invader bridge. By all accounts they balance well as a combo, and provide two distinctly different tones.
Hope this helps.
Rock on!