I have searched for something relating to this, and have come up empty handed, so please excuse me if I missed it. I am wondering why it is SOO very important to power down the battery before and after it is inserted into the quad? Will it damage something? Isn't it similar to when you land hard/crash and the battery pops out? Is is hard on the contacts (pitting/arcing)? What is the difference between turning the battery off before/after inserting/removal, and not turning it off? I know there are many warnings about this, but NO explanations as to why.