I wouldn't call it a "risk" as you can always return them minus a $10 restocking fee. But, the quality is all over the map. Some have only the smallest defects that would be noticeable only to a borderline obsessive; others are so messed up that they will irk you every time you look down at them.
If you're at all interested, I suggest you contact the Shoe Bank ASAP at (262) 284-7158 to see what's available (they will email you a list of everything they have in your size, or tell you over the phone if they have Daltons if that's all you care about). I, undoubtedly as well as others, have already asked my regular guy there to set aside the ones I'm interested in so that come next Monday they can be sent out. I'm not sure they do this for everybody, though - I'm a "power user" so Vincenzo might just be doing a solid for me in particular. At any rate, the sooner you call, the sooner you'll know what's possible and be able to lessen the risk that someone else will snipe your dream pair.
BTW, others may know better, but I'm not 100% sure whether Daltons will be part of the sale.