Originally Posted by DannoXYZ

Remove spacers from the right side of the axle until the 1st cog is 3.5-4mm away from the inner dropout face. Put these spacers on the left side of the axle. The rear-derailleur won't have to move inwards as much to reach the largest cog. Another benefit is your wheel will have less dish for closer left/right spoke-tension (once you've re-dished the wheel).