I have always wondered why people drop $4k on a bass and then rip out the pickups, add a new preamp, etc. I would personally never buy a $4k bass unless it absolutely blew me away and I would never buy it if I needed to modify it dractically, but to each their own. Personally, I am about to add a Sadowsky VTC (Vintage Tone Control) to my 1992 Sadowsky NYC and that is only to give me some more vintage tones out of my amazing sounding (and amazingly bright and modern sounding) bass. The VTC on my new MS5 sold me immediately. So what have you modified and why? I am interested more in why someone would modify an Alembec, Fender, EBMM, etc., not really an SX or a Squier. Straplocks and changing pickguards don't count.