The spoon caliper sits closer to the hub, and the way my advan spokes are made, it barely cleared.
The project mu has a massive 355 rotor, and it pushes it out away from the hub. So glad it fit, but its super close to the barrel of the rim.
Here's some pics of my install: S2000 Forums -> Project Mu BBK Install with Advan RZs
For some of the caliper specs, I went to nengun.com and checked out their calipers/specs.
Ahhhh. Ok. Yeah, the clipping toward the hub was a concern when trying to fit my wheels to the calipers. After checking with the Stoptechs, that inner corner just barely seemed to touch. My Volks cleared without a spacer, but it was close enough to be scary. Oddly enough, the spoke design of the Volks nearly perfectly matched the caliper.
It kinda sucks that you had to put a spacer behind the rotor (if I read your post on s2ki correctly). Wouldn't that affect the pad wear though?
A spoon template would be sweet!
I'm a workin' on it! I've talked with Spoon USA about it, and after an initial test PDF that I sent to them, I found it was a waste of time. The PDF file was coppied wrong and was not to scale. (blasted enginerds at work!) That is the biggest issue. To keep measurements on the screen the same as those in real life after you print it. I have a PDF creator now though so I can experiment. Also, the spec sheet I got from Spoon USA (Opak Racing) isn't exact to what the actual product is. So I have some minor tweeking to do before I can put it out there for people to use. I want to make sure it's 100% accurate. I had a spec sheet that came with the parts when I got them, but I don't remember what I did with it.
I gotta use it anyway because I want to be able to use my spare if needed. And I need to find out what kind of spacer I need to make for it to work.
But, like so many of my projects, it's on a back burner. I'll eventually find some time to finish it though!