I figured I'd chime back in on this topic also..

All of the ones I reflowed ended up failing again. It's simply too big of a thermal load for the cooling system to dissipate, and once it's been cooked, it will never be the same. As Konrad said above, it's definitely affected some component permanently.

I simply parted out all of the failed units, and recouped all my costs (plus a little extra).

I've also had two xbox 360's fail again after reflows, so I've just unloaded those as well. As much as this was a great hack/repair, it simply wasnt reliable enough to keep these systems in service. It was great to recover data or limp along temporarily, but replacing the device is just a better option.

What if you cant afford to replace it? Limp it along until you can.. it WILL fail again.