I understand your need to make this block as perfectly as you possibly can since you are sending it off to someone else. If I were the recipient, I would really appreciate the fact that you kept working at it until you got it as close to perfect as possible. I've been in exchanges like this where some of the blocks I received were an inch smaller then the pattern required, so your attention to detail is highly commendable!!! And now you know the secret of the marriage of PP and pieced portions of a block!!!