Because you have the Momentums & PSBs, you are the perfect person to ask! I assume you are talking about the over-ear Momentums? Not the on-ear?
I have kind of biggish ears--stick out a bit, not super weirdly but it is hard to find headphones that don't impinge on my ears and make them uncomfortable. The Momentum's cup brushed up against the edges of my ears and that was uncomfortable for long-term wearing. I'm thinking of getting these PSBs for commuting, about 45 minute train ride. Are these cups bigger and deeper than the Momentums? Do you think they would fit well over larger ears?
Thanks for your advice!