Will,
Using a pair of calipers, measure the length of the shock with the calipers inside the ball-cup and shock cap end. You should get a length of about 60-61 mm. It's important that the left and right sides are the same length (if within 0.05 mm that's fine). If you are overall too short, back off the ball cup on the shock shaft to get to the right length. What roll center blocks and shock positions are you using?