This surprises me, as the Shure Olives do nothing for me aside from mushing up the sound. I just assumed the Comply (T-100's?) would do the same. Have you ever used Shure Olive foamies, or have any comments on the differences between the two tips? I have have Comply T-400's for my HJE900's which, while they work nicely on those phones, seem to wear out much faster.
I'm actually mostly new to IEMs so the only tips I have are the stock tips and the T-100's. I think I should mention that I don't know I'd necessarily be able to pick out that perceived smoothness in an A/B with music, especially with that massively distracting mountain of a peak I hear, but in listening to a sine sweep the difference was rather dramatic. I plan to do some more back and forth comparisons soon.
I'm sorry if this has been mentioned already, but do we know if Future Sonics would make their custom sleeve to fit other IEMs?