Follow the instructions that came with your lathe. I use the carbon bit on mine but make sure you keep it sharp. I use a permanent marker and cover the com area you are cutting. Take very little cuts and remove only what you have too. Keep using the marker before each cut. Other than that, just take your time and it should come out OK. Hope this helps.
[CENTER][COLOR="Blue"](2) X-Ray T1-FK05's * Associated RC18T
(2) CRC T-Fource Red Edition * Associated RC12L3O[/COLOR][/CENTER]