AV in the neck and a SD sjag2 in the bridge is just as good as a Dimarzio super distortion humbucker,i got both in my guitars so i know from experience.
With a AV & SJAG2 you will have a real nice jaguar tone and if you want to play some metal type stuff just back the tone off to about 2/3 and you'l loose ALL the the brightness of a jag,but keep plenty of tone to have a cool sound.
As for the Jaguar bridge,there is not 1 thing wrong with it and those who say strings jump saddles have no idea how to set up a jag cause i play Hard and ive NEVER had it happen.
The solution is as easy as file a groove on the 6,5,4,3,2 saddles-geting smaller as you go,file it directly over the intonation screw for the center point.
Intonation and Saddle Screws: Simply set the action,intonation and 2 bridge height adjustment screws EXACTLY as you like it,dont stop messing with it until your happy,then get a cheap super glue and put 1-2 drops in the top of all 12 grub screws.(its reversable,just "crack" the seal)
This will solve ALL buzzing problems,your intonation screws dont need glue and chances are your bridge height will never need it either.
IMHO a muastang bridge is a complete waste of money because once you have filed grooves you essentialy have a mustang bridge(FREE).
If you need help just pm me and il help you out with close up photos of anything concerning jaguars,jazzmasters or mustangs.
goodluck dude.