So, just a quick story about battery choice for the Nero. I went with the gensacearespammers 3S 7000mah hard packs for this beast and found that those beautifully engineered battery compartments were just a bit too tight for these big packs. The battery ports were only about 3/32" too narrow for these batteries and even though the cages to flex somewhat, they just couldn't hold the hard packs. I wanted the punch that these batteries provide so I had to do some surgery. Not wanting to mess about with the visible side of the battery bays, I removed them from the truck and, using a good Olfa blade, cut off much of the inside cage of the battery tray. Fortunately, none of the support holes that hold the tray onto the truck's frame were removed in the process so structurally, the battery bays are sound. After clamping the batteries in and putting them back on, It looks as good as if I had never had to cut it. Just goes to show, where there's a will, there's a way.