It seems that on the whole the size 10 fits me almost perfectly and that I might not need any adjustment. What I don't like, though, is the bagginess of the sleeves and the way the shoulders seem to droop.
Pardon this really terrible cell-phone picture, but it kind of shows what I'm talking about in the sleeves. I might try to do some adjustments and re-set them in.
Stay tuned. More progress to come.