I have both the Cobain signature mustang with TOM bridge, a 97 Jagstang with mustang bridge and a Warmoth jaguar with Staytrem bridge (which is essentially an improved Mustang bridge). The biggest difference to me is that the TOM is a little bid easier to adjust (intonation, raising or lowering the action). However the mustang bridge has the right radius (7.25" while TOM's are generally 12"). To me it's a matter of personal preference and I much prefer the Staytrem bridge I have on my Jaguar since it has the right radius and has a little bit smaller string spacing.
And the mustang or staytrem bridge is a little bit easier on the hand when palm muting
And why the big no-no on neck shims ???
I use it on my jaguar and it's the best resonating guitar i have. It makes especially jaguar bridges more reliable and easier to adjust.