@spirithorse if one had noticed the problem, yes. I don't like to stack cut over 1/2" material, so I blindly stacked two fronts/backs and stacked cut two sides.... when I got got done was when I noticed something was not right. So I made another copy of the front/back then changed the slots on the pattern and re-cut. I don't mind, I like doing this, I just hated wasting the Maple wood. I still have to cut the front/back/sides in 1/4" BB to utilize the 1/4" BB backers I used when I cut the top and bottom..... Good thing I like cutting fretwork... And my next planned projects are fretwork of this kind..... It is my thing, just like others enjoy cutting puzzles, making toys, or portraits,,,, we do what we like to do....