All a matter of personal preference. I'll say this - the
band in the pic you have labeled "thin" is actually 'beefier' overall than the second
band. Personally, I think the first
band you attached (which is the Black Elastomer with Lugs
band) looks great on the Black / Orange
Core. If you go with this one and want the completely black look as pictured, you will need to use the black lugs from the orange
band on the new black
band.