Another thing not touched on yet is when your building/rigging/maintaining your air system NEVER us a x-acto knife to cut the air tubing from your T's and other fittings. The knife will score the T or other fittings and a leak will definitely be present there. A few of these in your jet and you'll be in trouble. Best way I've found to remove the airline is to use a side cutter or Dykes and pinch it from the side and remove a little of the airline and then pull it off. How ever you do it don't damage the fittings and you'll be golden. I guess this falls under user error which is what causes most problems in anything in life. LOL!

Tim