I have a VM Jazz and I'm looking to enhance it a little for those who have done both what do you consider bigger bang for your bucjk as a tonal improvement. DiMarzio Area J's or installation of an Audere pre amp.? My think is that replace pickups = improved tone whereas pre amp = more tonal variety but not necessarily improved tone. Which would give more improvement to my tone? One last thing since I'm not at home, (I'm halfway around the world in Asia right now) and I can't measure my pickups. Are VM Jazz pickups the same size or different sizes. I'm looking at ordering my Christmas present to myself before i get home.