Nice first impression post. I’m working my way towards doing a similar post myself after owning a pair of these iems since tuesday. I found the fit a bit troublesome even though the shells are fairly small i found the lack of memory wire around the ear section of the cable to be an issue holding the shells and keeping a good seal. I ended up swapping the cable with my oriolus set and have a much better time now. I also tip rolled a fair bit and have ended up suing some eletech tips i bought recently as I found the stock silicone tips made the bass sound quite bloated. As for the black velvet tips the nozzle holes seemed too small in diameter to actually fit. From my first listen I noticed some nice detail and soundstage compared to my other iems. I agree on your bass observations also.