I suggested getting foamies in T200 (4.0mm) or T300 (4.5mm) size. Posted links in a previous post in this thread about them. They have smaller nozzle diameters than the typical T400 / T500 (4.9mm size) and the tighter fit keeps them on the nozzle instead of my ears. I lost both tips every time I used them on the ZS6 which has no lip on the end of the nozzle and 1 about half the time on the ZS5 which at least has a nominal lip. Going to the smaller diameter ones fixed the problem.