I've had my Triple.Fi 10s since Wednesday, and I love these things. The sound quality is excellent, and they are a lot more comfortable than I thought they would be. The only problem I'm having with them is they don't seem to keep the seal that long. I'm using the stock medium size tips, which to me, were the most comfortable ones that came with the IEM. I tried the small tips, and they were too small. The large tips seemed ok at first, but became painful. I tried the packed in Comply tips too, but my music sounded muffled, and I really didn't like it when they re-expanded in my ears.
I had the same problem fining a good fit when I first bought my CX500s, and the only tips that came with those that worked for me were the pack in double flange tips. What tips should I look at?