Evil made the smoothest barrel ever. Buy a profilometer and try it. Make certain it is a good one or it won't read low enough because the barrels must be a micro finish of 2 to 5 micro inches and two is as low as you can go... so have faith that no one is going to top this baby. If you really want to have fun, use the profilometer on some other 'high end' barrels in the industry, then test a stock piranha barrel and see that they read the same in most cases and actually worse in others....
;)