Thanks for info, now I know I won`t buy those. I already had a feeling from the beginning of Zircon hype by few members here that they are nothing special. P2`s are already history after I heard EDSE, not to mention newer ATE, ED9 or ED10. Up from there comes probably some DIY IE800 versions (yinjw) and Better hybrids. Probably will skip that tier and get Fidue A73 or ATH CKR9LTD.
I actually like the Pistons somewhat. Just wish the bass was tighter. Funny you mention the EDSE. I pulled them out when I had some time to kill at the airport yesterday and compared them to the Zircons. I much preferred the Zircons. The EDSE seemed thin sounding in comparison. Anyway, I've decided that there is just no way to know whether or not you will like a headphone based on other peoples reviews or impressions. The only way is to get a set and try them yourself. Even then, tastes can change over time. This is why I never try to hype something up (other than just saying I'm really impressed with it or really enjoying it).
Don`t get me wrong, I`m not "hyping" EDSE, I also didn`t like EDSE because of "thin" sound and little lack of sub-bass, otherwise they were pretty much up to HB3P1 level (especially soundstage and details). But then again, when I read some ppl impressions about EDSE, I wonder if I should get another pair (I won`t, have had 2 of them and they were same sounding). For example I know a guy who ordered 3 pairs but one out of them sounded littlebit better and more bassy. I guess it`s all about source gear matching and personal subjective opinions + cheap IEM QC issues. I also agree that best way to get an idea is to try Yourself but when You read some comparisons with other IEMs, You still get a somewhat idea what is or isn`t "improved/better" than other IEM.
Atm, my subjective opinion is that, in stock configuration, KZ ED10, despite being slightly V-shaped signature (much less than I expected from impressions) is one of the best dirt-cheap bang-for-a-buck IEM`s, shortly followed by ATE, ED9(brass) and ANV (all being with different signature/nature and not certainly one better than other)... all those latter mentioned being noticeably better than Piston V2 (legit) mostly in every SQ aspect. And if I consider some users personal preferences and source gear (been in threads for a while), then I can make pretty accurate conclusion for myself. This time I decide not to follow Zircon hype.
But this all is just my subjective opinion with my gear, music, taste, reference point, experience etc.
If someone is interested about Zircons, then they should still try them (if they have enough information basis). But following every hype without any questions/comparison relating to Your own reference/experience can be misleading.