Can't add more to what has been said but just reinforce to stay with the DD till you get it sorted. It will be easier than working on the wedge. For the wedge you can take a gander at http://www.coticule.be/wedges.html for some ideas as to how to go about honing one. There is an excel document there that will help you determine how much tape to use on the spine and it was a hrlp in that regard to me in honing a wedge.

Bob