I was just thinking the same thing today too; like, I noticed in Charvel's current line, San Dimas's have 1000s while So-Cals have 2000s (just an example). If I had to guess I think 1000s are the higher quality; i.e. are made closer to an OFR from Floyd Rose.
Charvel So-Cal (SH6TB/N, killswitch), Jackson RR5FR (TB6/Jazz, Drop C). Joyo pxl pro.
Loop1=Crybaby from hell, Boss PS-5, Seymour Duncan 805 or Green Rhino, EQD Hoof or Earthbound Audio Super Collider. Loop 1 into ISP Decimator II.
Loop 2 (FX loop)-Line6 M9, TC Spark Mini. Loop 2 into mxr 10band. All into a Peavey Triple XXX 212, Ibanez IL15.