bought myself some Westone UM56 custom eartips for my Westone 4r. the adaptors don't seem to fit. they were custom modeled, so they should create a perfect seal. at least as good as some universal ones, like the shure triple flange. but they aren't, they poke my ears and create severe pressure in my ear canal.
my question, how do yours fit? do they create a firm seal, and fit perfectly? shouldn't these isolate better than non custom made eartips?