Jay,
Nothing wrong with collector grade cards. Mine are mostly mid-grade as well (5-6). Very few people can afford the set in high grade (NM or better). I don't mind a soft corner or shift in centering if the price is right and I think that most collectors would agree with that.
I'm looking forward to seeing your cards. Hopefully you got the Jack Zilly card (best looking card in the set imo)!
Take care,
Scott