This is a bit of a subjective question and will depend also on what else you have going on w/the bike. Considerations of rider's style, weight, ability, and rear ride height are just a handful to consider. And in the end, what is working for one rider may not be so nice for the next.
Generally, the concept would be, the lower the front of the bike (lower the triple is below the fork caps), the quicker the turn in. With every good comes a bad. What you begin to jeopardize is the stability of the bike on the throttle and especially at high(er) speeds.
So in essence, the objective should be to find the the quickest feeling turn in and still have enough stability on the throttle at high(er) speeds that you feel comfortable with. Again, this will be different for different folks.
You might try the following, and then make minor adjustments (~2mm) from there: Drop the front triple to 8mm below the fork cap. Flip the rear eccentric insert so that the rear ride height increases. Go ride, try it out... then maybe go to 10mm on the front. Ride, try it out... Then go to 12mm, Ride and try it out. By this time, you should definitely begin to notice some differences. Go with something that gives you the most confidence, the most stability, and suits YOUR riding style the best.
EDIT: Of course you should ensure that your suspension is sprung for your weight and the sag numbers are looking good.
Last edited by 1000RR; 11-13-2012 at 02:10 PM.