TigreNegrito
100+ Head-Fier
Bagman, I find the stock TF10's are great for athletics as long as I am using foam tips. The silicone tips get sweaty/wet and pop out, but the foam holds firm. The over-ear wire helps, too, so replacing the cable with one that doesn't have that is bad (again, for athletic endeavors). I'm fixing to get them re-shelled and don't know what the outcome will be for them staying in, but I figure if band members can rock out for 2+ hours under heavy lights and still keep em in, then I'll be fine.