Cheers Syd old boy!
I was pondering this yesterday, but got sidetracked and completely forgot about it. (I probably saw a big pair of bahooomas somewhare)
I've heard through the grapevine that contrary to the S2, on the S4, what works for you will work for most, so I might give this a pop!
Btw, does this replace the CWM recovery, as I have Philz at the moment.