After almost a month of listening, I can safely say that these have settled and that the natural burn-in process is completed. I remember the official product page saying that "It takes about 40 hours to make a sound." I believe they meant burn-in. And I've used these at least 2 hours a day since then.
I must say that these would be the best value in TRN's line up right now,
probably in all of Chi-fi. At $20, it's hard to believe that there is anything else. Sure the ZSNs are cheaper in most cases, especially here in Asia but I just can't compare the build quality. These are much better built on all fronts. And
@KopiOkaya confirmed on some comments in Youtube that these are built to be shock, drop, and smash resistant. I believe him. The resin feels really solid and there are no visible seams. It's like one solid block, mostly seen in a lot more expensive pairs.
The crossover works flawlessly too as big bass doesn't show up in songs that don't have big bass. Mids opened up a touch more, as well as treble. Treble is a touch more detailed and nuanced now, which is perfect because it still is never sibilant.
Once you get a deep, secure fit, they sound better. I found the smallest silicone tips to work best for me. Haven't tried foams yet. I like the fact that you could clean and wipe silicone with alcohol without damaging them. Foams could be affected by that. Silicones are more hygienic in that sense.
In a nutshell, these are amazing for the price. I'm skipping the V90 and will wait for a similarly shaped and designed upgrade. These are a keeper and I love them.