Well...I have opened my ankle buckle. The inverter is 100% in the ankle buckle, its a custom board like I thought. Also...yea Its not pretty how I opened the shoe up, but it wouldn't charge anyways so figured I'd open it up. The charging port is actually attached to the inverter board too. Its hard to see the actual components since they brushed black encapsulation resin over the board, but the shoes are definitely dim because of the weak inverter. I'll have to put the inverter in my hot box to soften the resin so I can remove it. Trying to charge them up again, but will post back more pics soon of it completely removed.