As for stopping casting, I just bind to g (sic) and shift +g (obey), if I need to run to dodge, sprint(f)[makes me laugh every time I type it] and pet obey are within the same hand gesture. The timing doesn't have to line up 100% (15 sec is 15 sec regardless of if the dot is at 3 seconds or full cast) as long as all the dots are on it (at least in my mind).
@T0rin (again heh):
I don't cast, I just turn off/on depending on when I need it to fire off (rarely manually cast, I should say).
Also, loaded up that parser
nearly identical in both stats. bounced between 59-62 depending on dummies (used l50 dummies with aerial slash burning on CD to hit all 3.
http://sollabs.net/media/xiv/ruda_sic.jpg
http://sollabs.net/media/xiv/ruda_obey.jpg
If you want to hop on hyperion I can have you see the parses yourself. Reset their stats and ran each one up to 30k and received nearly identical results.