I recently replaced the DU bushings in the manitou swinger on my heckler. The swinger has dual pressure chambers; the front (positive, I guess), and the rear (negative, I guess) .  I have major trouble getting this thing balanced back after dropping the air from both chambers (to remove it from the bike.  I have trouble getting it right everytime. Anybody else have this issue? Know any stupid bike tricks for getting them tuned back in?