FYI, I recently obtained on the cheap two ex-demo PK Heritage Type C 98 racquets, with very light usage on both (8.5/10). They were not marked "demo"; the shop had simply pulled two frames from their sale stock and made them the shop's demos of this model. This was, I think, the predecessor to the Redondo, and featured a silver and black cosmetic, 80/20 graphite/kevlar layup, and brown leather grip. The leather grips were still in place, and clearly hadn't been taken off and reapplied (the demos both had overgrips over the leather). Minimal wear to the sides of the head, etc. I was very disappointed to immediately note the sound and feeling of creaking from both handles. With the leather grip on, the frame looks like a one piece with a fused handle below the leather. I removed the leather on both and discovered that pallets are in fact used to create the grip size. The creaking and instability was coming from the use of an apparently cheap glue/fixative that had already broken down even though these racquets couldn't have been more than 3-4 years old at most. I could actually pull back on the pallets revealing the handle underneath; the glue that was supposed to keep them bound to the handle was that far gone. LSS, I returned them (I'd paid $25 each) and got my money back. While I'm sure this could've been fixed, I didn't feel like buying a science project. Anyway, why are these handles creaking after so short a period? Judging from the obvious light use these frames had seen, poor quality control is the only logical explanation.