I wasn't clear from the link (didn't read it too closely). Is it a straight plug and play or do you have to do the alternate routing bit mentioned as hub bub or use a shift mate (or is that only if you don't do 10->8 or 11->9)?

A while back I picked up a microshift RD that had good reviews for crisp shifting and light weight, but could do a wide range rear cassette (shimano compatible). I wonder if it'd work with that.

Then I could have the ultimate frankenbike drivetrain with campy levers, microshift RD, 105 FD, Sram cassette, KMC chain, and I can't remember the triple crankset I bought for it. Have a set of DA DT levers I was planning on putting on my Kelly Take-offs, but this would be cleaner looking and appeal to my strange desire of making it as diverse a setup as possible if it all played nicely together.