RE: discharging lipo's "how"
Joe, there are a lot of different opinions on this but I would not suggest discharging lipo's or as comonly refered to as cycling them
The thing is a lipo doesn't need it, you only need to make sure your cells stay ballanced, A lipo does have a limited life and discharging them unnessesarily is just going to shorten that life, I also would not let a lipo get to 3V per cell. I would just fly to soft cut off then recharge properly