Make a good battery stop to use closest to the spur instead of the delrin stop. Killjoyken made one for his using two of the tabs to screw on the bottom skid plate. The two tabs were replaced with one of the cross braces from the stock kit and already had holes drilled lining up with the skid plate. Ken made me the same battery stop after we talked about this. Eight inch velcro loops work well to keep the battery pinned against the outside rail.

http://www.rc-monster.com/forum/showthread.php?t=11741