Suggestions for my JS100
Someone had a thread going a few months ago and they were able to swap a TRS for an Edge with no routing. Other people chimed in, and I think the concenus was that due to the poor QC and loose tolerances on the Korean guitars, sometimes this mod requires routing, sometimes it doesn't. I'm somewhat handy with a router, though I can't quite make a guitar body, I could definatly router or dremel a TRS body to fit an Edge. You'd also need new trem posts. The TRS posts are softer than the Edge posts, and the Edge knife edges will wear down the posts.
What makes the Edge better than the TRS? 1) The Edge is made of stronger metal. 2) The knife edges on the Edge are smaller, sharper, and more precise, therefore causing less friction with the posts, and fewer things to move.
Those are the 2 main advantages I see.
As far as pickups go, if you're looking for something smooth, warm, and on the hot side, try the Breeds. Other good neck pickups are the PAF Pro or the Air Norton. I assume you want to change out your bridge pickup as well? The Breed, Evo, Tone Zone, PAF Pro, Super Distortion, or even the Steve's Special would be good choices.
Another fun mod would be to replace the locking nut with a graphite nut and throw on some locking Schaller or Sperzel tuners.
You can also send it to Darren and let him work his magic.