I was asked a rodbuilding question while fishing the Hoh River awhile back. I will post this as it might be helpful to someone on this forum. This angler wanted to reshape the cork on his Spey rod and wondered if carving it and sanding was the way. The best way is to take the butt section of the rod apart from the rest of the rod, screw a woodscrew into the bottom end of the lower grip, cut off the screw head and chuck the screw in a lathe. If you don't have a lathe you can mount a variable speed electric drill into a vise and chuck the screw into that. Then make a V-shaped support out of 1x4 wood and attach a soft cloth in the crotch of the V. This will support the other end of the rod. It is important to wrap the rod blank a this point with several layers of masking tape to prevent the friction between the blank and the support from marring the finish. With everything in place, turn on the drill/lathe to medium speed and reshape the cork with files and sandpaper. Make sure you check for heat build-up between the rod and the support and take it easy so as to avoid this as it will damage the rod blank. Once you have achieved the basic shape, begin using finer and finer grits of sandpaper until you achieve a very smooth finish. Some folks apply a cork dressing to seal the cork. Personally, I prefer not to do this.