I just bought a pair of FX67s and they are shockingly good - I like them more than my Ety HF5s.
Re. joker's thread, I appreciate the absoluetly epic effort, but in my limited experience it can be misleading. I'm not the only person to think the HF5s and FX67s are much closer in sound quality than he rates them, and as for claim that the HF5's microphonics are low - well, either the custom fitted tips he was using made such a large difference that his review has nothing to with a stock HF5, or comparing even the simplest detail of IEMs is so subjective that reviews are worthless, or a LOT of people are wrong!
I can't comment on the Soundmagics, because I haven't tried them, but the 67s are a very safe bet.