I have an older Wilson hyper hammer 2.3 at 28 inches long. I'm debating on shortening the racquet a half inch to make it 27.5 inches. The racquet is made of carbon fibre, so I'm not sure of how to go about this. I've talked to people and have been informed that a fined tooth hacksaw might work but a high speed cutter (8000 rpm) is adviseble to avoid fraying. Has anyone ever done this? Thanks.