Okay, so I just spent two months building an "around the wall" train shelf for my two extremely patient 3-4 year old boys. It's a foot from the ceiling, goes through both of their rooms, and tunnels through the wall for a 70 foot total run. I just finished laying down 1/8" cork on the shelf tops and now it's time to customize the track sections. I've never done this before so here are my questions: 1) How do I cut old O27 track to fit my layout? 2) How do I solve the problem of s-turns that end up being "pin-to-pin" (I have this problem a few spots with 2 switches). Is there a way to remove pins or stick them on the opposite side of the track section? 3) How to I condition old dirty track sections for optimal elecrical connectivity? 4) What's the best way to wire such a long run? Will one connection cover the whole run? Thanks for any helpful tips you can provide. -Dave