So I finally got myself a PRS after almost 20 years of wanting one. Found a jet black 2013 S2 Custom 24 from Guitar Center's used section. A couple of long-winded questions: 1. I read that S2's use Chinese electronics and I wanna upgrade to better stuff. Would I need to make larger holes to put in higher quality American pots? Also I wanna swap the lamp shades for speed knobs. Aren't the SE speed knobs made for import pots? What's the best approach overall? 2. Where there any significant changes to the S2 line since my 2013 model? My model has a flimsy feeling 3-way switch on it but I played an 2016 S2 Custom 24 in a store the other day that had the same switch as a Core model. Seems like they must have decided to go with better switches as time went on. 3. I'm planning on completely immobilizing the trem on this thing. A guitar tech friend of mine recommended a Floyd Rose Tremolo Stop Lock. If I'm planning on taking the springs out and putting a wood block behind the trem, would I still be good with one stop lock or should I get a second? Not sure if taking out the springs makes a difference in the situation. 4. I plan on getting the MannMade upgrade kit with the brass block, the better saddles and such. Any other must-have upgrades I should consider? Thanks in advance!