Got my Zeros today. Perhaps I expected too much and perhaps it wasn't fair to A/B with my Flare R2Pro. Oh well, at least they look nice and the bass is there. Easier to drive than R2Pro, probably because they don't need much power due to lack of detail or bass texture. No match for something like the $200 Flare R2, let alone some $500 IEMS. I admire the enthusiasm and I'll continue searching the cheap holy grail Chinese IEMs, but these ain't it.
Talking about headfonics, they rated Flares 9 for sound and 9.5 for value. http://headfonics.com/2015/05/the-r2a-and-r2pro-iems-by-flare-audio/
Yeah, it takes a lot of extra power to get details and bass. Lmao