Haven't saw any reports online, so here it is
Guess my luck finally ran out, even though I had a few IEMs with widespread QC issues (Chu, Salnotes Zero, Final E500), this is my first "win"
Other than the faceplate issue, I like the sound (can't justify spending this much since I own an EM6L), hopefully the Chopin lasts long
Bass is a lot more impactful on the Chopin but it's a smoother glide down with less of a "tuck" on the Performer 5. Chopin does have a bit more in the upper mids than the P5 but not to the point it's problematic. Treble about the same I think, both are inoffensive. Both are great, I think purely on sound I probably would give it to the Chopin but it's a matter of taste, the P5 is ahead of the EM6L for me.
Fit is a LOT better on the Performer 5, it's a particularly good fit IEM while the Chopin is somewhat of a challenge... not impossible to get a good fit but requires more tip rolling I think. And even after all that- the Performer 5 is still a better fit, it's a particularly comfortable and good fitting IEM (and small, for an IEM of that pseudo-custom style).
https://timmyv.squig.link/?share=BN3,AFB5
https://squig.link/?share=Crinacle_Neutral_Target,Aful_Acoustics_Performer5,Binary_Acoustics_Chopin
Yeah based on the links and my experience with the P5, I can cross the Chopin off my list. I love my P5 and think some minor EQ is the way to go. Thanks!