funny... i was just about to link that out in the forum
i saw a rom based onit on xda and went a-searchin as well
when you say you rebooted to "stock 2.01.605.12" wsa that a typo? if not,then the first update had somehow applied itself allready.
stock, pre OTAs, was 2.01.605.11
as far as update vs Update,i couldnt say for sure that it makes a difference on s-on devices. i went thru the procedure i outlined twice on my s-off phone and it went smoothly,and i had mine named "update". i person could certainly try Update and UPDATE if they wish...
i also didnt extract the firmware packages. if youre using the stock recovery to apply the Otapkg,im not sure why they did that... the stock recovery will extract and install the firmware
im downloading OTapkg now... i plan to play with it later of course