If I'd read before..
monster triple-flange did not do well for me either.
Some good ones are MEElectronics Double Flange clear
And for foams: Bluecell Medium memory foam.
this is smaller and not the same quality as the included red foam tip,
but isolates and inserts and feel better.
I have tried the Bluecell tips as well but were not for me unfortunately. For foam, my favorite was with Veritas foam tips.