I'm in the market for a pit bag. Been looking at a few and have these two at the top of my list. First one is The SC RaceCase Ultimate Transporter Bag. http://www.racers-edge.com/The_SC_RaceCase_Ultimate_Transporter_Bag_p/rce2027.htm The second is JConcepts SCT backpack. http://www.jconcepts.net/store/index.php?main_page=product_info&cPath=5_12&products_id=518 Any advice will be great. And if you have a bag what kind do you use?