I'm getting pretty fast... About 15 minutes to remove the carrier, swap shims, reinstall and check. 10 minutes to pull the pinion, reset shims and reinstal. lI'm close, but I'm torn whether to move the carrier or back the pinion out. I think I should move the carrier about .005 away from the pinion to get my backlash back up. .004 lash seems too tight, but the pattern is starting to look good.