RE: LST2 EATING MY BATTERY
As a simple test you could charge the battery and then unplug it. If it still has almost a full change the next day that would indicate a drain in the system, most likely the switch as that would have to be remaining partially on for any current to pass on to the receiver/servos.
At what rate are you charging the receiver pack? What kind of servos are you running? What kind of condition is everything in? These are some other questions that need answers to determine the life expectancy of your battery.
BTW, with 2 steering servos and the size of tires weight of vehicle the LST does put a heavy drain on a receiver pack.
Ed M.