Filled out the form for a refund (batch 4) with aaron.XXXXXXX@gmail.com for the address.

If there's another group buy for reworked k16's that run a faster 55nm chip, I'd be keen to get in on that so long as my assembly costs are discounted since most of the parts are already purchased, happy to front up the cash for additional parts that may be needed to get the modified design working.