Recently I bought a stringing machine which allows me now to play around with string tension. I have two racquets which I like which are a SOTX woven-8 and a racquet by a relatively unkown brand (675mm, mid-weight, carbon fibre-titanium mesh). The other day I strung the woven-8 at 25 X 27 with ashaway A-68ti. For me, I felt the tension was too high for me as I had trouble even clearing. The other racquet I strung to 24 X 26 with the same string and I feel this plays extremely well. Clearing is easy, smashes are sharp and powerful (for me at least) and control on drives and net shots is great. I have a hard time believing that 1lb can make so much difference. I would have to say that the racquets are the difference. Do different racquets have different optimal tensions for each player? Is it shaft stiffness that makes the difference?