I've heard good things about the HiFi Walker H2, but I don't know how well it does gapless. https://www.amazon.com/gp/product/B072C4YPCG/

I think these are Flare's own tips. https://www.flareaudio.com/collections/accessories?page=2

Have you tried changing the filters? It could be caused by a blocked filter. I had the same problem and changing the filters fixed it.

  Zero Audio Carbo Tenore   https://smile.amazon.com/AUDIO-ear-stereo-headphone-Tenore-ZH-DX200-CT/dp/B0093VVP0Q/   Also available on eBay.

I haven't heard the RE400's, but I have the TDK BA200, which I've read are similar. (This review has a comparison between them: http://theheadphonelist.com/headphone_review/tdk-ba200/)   The Flares (I have the R2Pro but I've read that the R2's are all very similar to each other) have...

Oops!! Yeah, that's what I meant, the cable sheath, not the entire cable.  

On my pair of Tenores, the cable on the left earpiece came out of the strain relief, exposing the wire, after about 8 months of use, but it didn't effect the performance. And about half a year later it eventually died. I was pretty careful with them, otherwise I don't think they would have...

I recommend asking Joker in his thread, as I'm pretty sure he has heard all these IEMs you've mentioned. Here's the link: http://www.head-fi.org/t/478568/multi-iem-review-343-iems-compared-xiaomi-piston-3-added-09-13-15-p-1082/16245

https://www.massdrop.com/buy/aurisonics-rockets-exclusive-edition   The button to click to submit a request to bring it back is on the right hand side of the page.

Yes, you're not missing any of the accessories that came with the revised version. Mine didn't come with a cleaning tool either.

Basically, except it also comes with a pair of medium biflange tips. There were many reports of durability issues with the extension cable, so they switched from having a short cable + extension cable to having a full length cable.

I got that same message in my tracking info. Basically, what was reported by Flare (they inquired directly with UPS) is that any package delivered in the US with a value over $200.49 would get charged the brokerage fees. Since I ordered the R2Pro I had to pay the fee, which was around $22. I...

128gb Sandisk MicroSD card $60 on Amazon   http://www.amazon.com/gp/product/B00M562LF4/    

I've only heard the mk1 version, but I've read that the differences between the 3 versions are slight, especially between the mk1 & classic.   Here is a link to one comparison between the mk1 and classic: http://theheadphonelist.com/brief-impressions-vsonic-gr07-classic-plus-warning/   And...

Those are neither the mk2 nor the mk1, but the classic version, which is the newest model. I'm fairly certain that the mk2 was only available in black, while the mk1 was available in black, silver, & gray.   The mk2 and mk1 have a different cable, with the mk2's being a more true silver color...