Klipsch replaced my T5s. They had the issue of dropping out when walking. They had said it was going to be fixed with a firmware update, but the app had been pushed off until at least November. I was sceptical but went through the replacement process anyway. Turns out this pair works great, as advertised. I still have the issue that the large tips they supplied are too small for me. It adds a step, but I switched to comply T100s that have to be removed before I put the T5s in the case. They are the comfort series so they fit great.
Now if the app could just be released...