^ I think that cloth looks great as a suit and imagine it wouldn't see a lot of wear as a SC, so unless you'd want to 'casual the suit up' with patch pockets I'd go with flaps (but no ticket for me, just personal preference).
Interested to hear differing opinions...
I'd consider besom pockets. They're minimal since they don't have a flap and, as such, look more dressy but you can't lose with flap pockets.