I was wondering if you've tried the HTC bundled headset? They sound pretty good to me for a bundled headphone and if my memory is at least close to accurate, they sound more enjoyable compared to the MH1c. Really nice bassy iem I must say; comparable to the Zero Audio Basso. Although not as refined but definitely worth keeping.
My HTC phone came with a set of HTC-branded earbuds (not an in-ear headset). Never seen that one before.
The Westones sound like I good fit, however, from what I've read, the UE Merlin might also be worth a shot, I just want to make sure I get the signature right before buying, there is nowhere in my area where I can try on universal fit versions sadly. Thanks again.
No doubt. Getting the customs with the right sound signature is 100% worth your time.