It is always advisabie to put a remote battery holder away from the boards on the flat bit of the back box, just in case the batteries decide to go pop, it just stops the acid doing damage to the boards? Which is expensiveMine doesn't have the remote battery installed..

L3 to L6 was just upgrades along the way addressing a few things, some they get right some create new issues, that need to be upgraded again. L7 has the billionaire bug. There is an unofficial L8 version out now, but while reading some reviews the L6 seems to be a good overall upgrade and won't crash when you finally get to the billionaire club. Happy days
