there is something about it that never fails to make me smile. this might be an old idea to everyone but me. i laid out the middle pieces first, then laid out the root and tip pieces. can't use them on my new truck as it has 17 inch wheels. static electricity can still pass through the bag. if there is anything else you need just let me know. we can now offer you education at a fixed cost, no matter how much your staff studies. when i speak, i am speaking what i see. 