Hmm, i dont think it requires sizing up. Not sure how snug is snug for u on the capital last. If u dont experience any toe pinching w capital last, perhaps u can take the same size in rain.
Anyway KS is carrying carmina, go try sizes for yourself will be the best option.
No toe pinching, but don't think the shoe can go any narrower.
Yeah maybe I'll do as you suggest and make a trip to KS. Been hesitant to do that. Paiseh to go just for sake of sizing lol.