It could be sacrilige for me to suggest it, but in the early 80's, there was a preponderance of truly awful wood/graphite composite Donnays sold at chain sporting goods stores in California. As a beginner in 1982 with visions of Bjorn Borg in my head, I had one of these, a "Wimbledon Mid" I think it was called. The "Horizon Mid" and "ITT" series of frames were others. Very modern 90 square inch midsize head, lovely black with the orange/red graphics and white lettering that made Donnay frames look so cool. However... it must have been made of some very soft wood (balsa? Laminated with cedar with carbon charcoal briquette reinforcement??), it felt as though it would certainly fold in two when hitting a ball. It was impossible to serve with (I could throw the ball, baseball pitch-style, faster), and it had absolutely awful ball control ("Honest, Coach: I'm really trying to keep it in the alley!!"). Within a couple months, it began to warp (with its soft factory string job, which must have been 40 pounds tension on the finest 15L nylon money could buy by the union truckload in Flanders) across its face. One well executed pubescent racquet throw sent it to the Big Pro Shop in the Sky.