Oops, entered the pix twice New software asked for thumbnail or full pix, but I think it automatically entered the full pix first and when I then clicked full, it put the pix in again. OK, there's a lesson.
Also meant to add the following. While it's easy to find most major defects by eye, sometimes the problem is more subtle. You can detect these using two very straight sticks. Lay one across each end of the board. Sight down the board and notice whether there are any gaps and if the two sticks are parallel. This would be something you do after selecting the best boards you can find.
You also need to find a lumber yard that carries hardwoods near you. Check the web and any local woodworking or cabinet maker shops for where to get hardwood. These stores will also carry real Baltic Birch plywood. Once you use BB you will only use the big box ply for rough uses. The OK big box ply is as expensive as BB ply, but real BB is generally 5x5 ft., and has 2 to 3 times as many layers, all without voids so the edges are always solid. I think you can sometimes find larger, 4x8 sheets of ApplePly, American made, is available from certain sources.similar to imported Baltic-birch plywood, ApplePly is a premium plywood made from thin layers of birch and faced with various species of veneers. Made by States Industries in Oregon. I haven't found a local source yet, but my nearest lumber dealer is about 40 miles away.