Refer here: (tests begin to appear on page 2)
http://ffxi.killvoid.com/forums.php?m=p ... 145248&d=0
OP is basically half-wit theorycrafting, but stupid-proof tests seem to legitimately prove that a VIT mod does exist on Jump; however real situation use remains a mystery. The damage range obtained on level 1 mobs is large enough with relatively small stat increases to suggest that generally cool things might be possible for drg's and /drg's... and that's about as far as the illustrious KI drg community can bring us.
Basically, KI sucks too much not to shit on every thread with spam and 4chan pictures, so I (apologetically) make this topic here in the hopes that a WAR/DRG with koenig can go jump on stuff to show us some neat damage ranges, possibly put some magical math on the whole shebang.
... or just, loldrg or something.