Most the time they come out nose heavy. If you do a quick search or go back a page or three you will find a thread on the Up-Roar started by Rick. He cut his own kits and did a LOT of mods to three of them. Cliff built a great example of one and is in the same thread. A lot of guys chimed in and showed what they did. Moving the battery around to get the CG is pretty normal but there isn't a lot of room in the roars. Look up the thread, it's a really good one!!!