Not a lot of good stems at 10 or 12 degrees I think, I have a Pro PLT stem which is 10 degrees, which I had on the bike previously, wasn't quite parallel to the top tube.
Yeah choice isn't great. Seven degree fizik looks a'lreet on my C10. I don't think you can get a match to the slope of the TT, but visually I think it works better than having the TT slope up and the stem sloping flat / down.
Not a lot of good stems at 10 or 12 degrees I think, I have a Pro PLT stem which is 10 degrees, which I had on the bike previously, wasn't quite parallel to the top tube.