I own a brand new Felt F2C with a Truvativ Carbon crankset (their top of the line setup). I noticed while on the trainer that the large chain ring has a slight wobble that bugs me. So I proceeded to check just how much it was. Using a toothpick taped to the frame I checked the max wobble between it and the chain on the large ring. What I found was a .025 spacing. The smaller chain ring has a .015 spacing.
I called Truvativ and talked with them about it and they said 1mm (.039) max is acceptable but you can remove the crank arm and re-install it with grease and also try a new position on the spindle. I'd really like to get it better but am I being too fussy with this whole issue. Being an aerospace engineer I tend to be anal about tolerances...one of my downfalls I guess. I'd be open for suggestions from all you folks.