I've been GAS'ing for a jazz bass for a while now, and am a relatively recent convert to the Modulus camp. So I'm a bit torn between a Vintage Jazz 4, and a Flea J4. Both would suit my want of a jazz style instrument just fine. I've already got a flea 4 with the standard MM pickup configuration, so having two similar basses could be nice for the familiarity aspect of things. However, I do really dig the look of a jazz bass. Aside from the body shape the only difference I can see between the two is the neck profile. The flea is 1.56 at the nut and 2.45 wide at the 22nd fret. Whereas the VJ4 is 1.50 at the nut and 2.50 at the 21st fret. Basically the flea neck will be a little bit wider at the nut, but straighter as you travel up the neck, whereas the VJ4 will be narrower at the nut and will become wider more quickly as you move up the neck. Also there's the obvious difference of 1 fret, but I'm fine with either 21 or 22, so its a non-issue. According to the Modulus website the price differnce is in favor of the VJ4 by about $400. Are there any other noteable differences I should consider?