Hi Mal, good to see you're coming back even if it is the "Dark side" (just kidding buggy fans). You know all are welcome, No discrimination at our club!
As for using 1 li-po all night, I think it will depend on your gearing and how many runs you do before charging, not forgeting to have it cool enough to recharge. Do you use "stick or saddle" packs. I have Jason's stick packs (2) if they are any good to you. Got my own Li-po's now. Let me know if you want them charging up for the 9th.
See you there Mal.
Ray.