I just ordered mine as well. I've been running mine with a homemade mount, but Mike's is so much prettier.
I'm surprised that you guys are going to be running the 1512 in the 8ight T. I've asked the 1515 vs 1512 question a few times and started a thread on it. Most responses seem to think that the 1515 is more suited to the job. Obviously, you guys think otherwise. The 1512 1.5Y is what I had my eye on.