Originally Posted by Doctor of Credit

TWG said he's bought 4 cards over the past couple of months, so I assume it's been making the rounds on the private forums/PM communities for awhile now.

He also said the following:

Bank of America and Chase cards run as purchases.
Citi and US Bank run as cash advances.

Will be interesting to see how the whole thing plays out, I'm doing other things with MS at the moment. Really only did one test purchase so I had a hard data point. Another handy back up if it sticks around and something I might put into more regular rotation after experimenting with it a bit.

Don't hit it too hard guys and it'll stick around.