I agree, I only have a 42mm S10 and I only have one sport band that is also 42mm. All my other bands are old ones and they fit fine.
You can maybe see it on my photo I posted earlier today![]()
I can, but to me that actually can look even better from certain angles. It's the same with my leather links on the Ultra, the edge of the band doesn't quite reach the end of the cutout, which leaves the very edge of the cutout visible and that area can shine under the light in certain angles (like yours does).