Were did you get your upgrades? I have 7 S1's on the way from ebay and was thinking about upgrading them.
I ordered them from BITMAIN before they sold out. They should be making more soon. Hope they do anyway i got 3 more i wanna upgrade. Seems they have some pretty cool products coming out soon.
Unfortunately, bitmain said (in this thread I think) that the upgrade kits have been discontinued! I'd like them to go back on their word, but seems unlikely.