It appears so, at least from a quick foray into what is listed for the mh755 on ebay lol.
If you are willing to part with a pair (non working is ok) for reshelling let me know.
Looks like you are correct, as I was able to find a couple at home still in the packages from my SBH20s that still had the tag on them saying MH755 (apparently I had taken this off of the pair I had at work). They are all black ones too, which from what I've seen appear to be difficult to find genuine.
I popped one into my phone today and was amazed that the hype was real, I'm pretty impressed by how similar the sound signature was to the XBA-N3APs I just got. Obviously comparing ~$15 to ~$250+, so the detail, clarity, and response on the N3 was better, but it was not total night and day like it was with all the other old earphones I compared to the N3. The N3 is incredible and very worth it IMO, there is definitely a noticeable difference, but for something similar for like 1/20 the price, these are just wow. A couple times during A/B I had to look down to verify that I did indeed have the cheap ones on.
They also seem to respond decently well to EQ based on quick testing, and I could probably close the gap between the two even more with some refinement. Also no joke about how these could benefit from an amp, they required quite a bit more power than the N3s.
That said, now that I realize the little gem that's been hiding in my closet, I feel a little less inclined to part with them
I had been searching for a good IEM for travel and working out that wouldn't kill me to lose or break like the N3 (which stays in my office) but which had similarly good sound, and these seem to fit the bill perfectly, especially with already having backups in black.
However, while I may bring the BT adapter (which actually plays quite well with the odd cable style) back for working out, I could see recabling one or two of them or giving away one in exchange for another being recabled for me. I haven't seen much on reshelling though, are you just looking to tweak the sound?