RE: LST2 EATING MY BATTERY
Not knowing what your set up is makes it harder to answer. I can tell you mine and my experience.
I use a single 1400mah flat pack with a Spektrum rx and dual Airtronics 94359 steering servos. With that setup, a 5 minute qualifier (with warm up laps) drains over 250mah. that battery pack gives me about 20 minutes of run time. If I ever make it to an A main, I have a 2500mah hump pack on the front shock tower that can be hooked up at the same time. That will give me pleanty of power for a 30 or 45 min main.
Since the battery's voltage will fall below what the rx needs to operate when its charge is too low, the 400mah charge lasting just 5 mins sounds about right. However, I would say that the pack should not discharge overnight. The switch is a likely suspect. Try disconnecting it overnight and see if that does anything.