One of my sons has asked for a wood racquet a few times and his birthday is coming up so I've decided to buy a couple of them. We have a "Play It Again" store nearby that has some wood frames so at least there's a local, relatively cheap source. 1. How do I evaluate the condition of a wood frame beyond the obvious? I'm handy enough to look for obvious cracks and dried out wood. But are there are other, less obvious clues to a frame's condition? 2. Once purchased I intend to have them strung with natural gut. Any recommendations as to tension? Things to look out for? 3. Is there a better, more reliable source for wood frames? Thanks in advance.