The SM3 is the only IEM I've found so far that fits my ears fairly well. The larger Comply tips included with the package fit quite well, but I'd like to have an alternative that's not quite so totally isolating - if I'm wearing these and the phone rings or my son calls for help, I can't hear it at all. The bi-flange silicons that come with the SM3 don't fit well enough to provide bass reinforcement - think they're too short. (And both sets are the same size? Objective???) Also, the Comply tips seem to suppress the highest frequencies just a bit - though that might be a subjective reaction to the lesser bass of the bi-flange, not sure yet.
Are the tips similar to the included silicons that are a bit longer / narrower (?) that fit the SM3 that anyone can steer me toward?