That works for making a straight line, but lets say I want to make an umbrella (I don't). I could make the handle straight, but once I got to the top, the CV tool would just warp everything and I wouldn't be able to make it. I'm sorry I can't be clearer, this is hard to explain Er, picture one of those test tube things. I can make the bottom of it all curvy like, then I go straight up with the curve tool, but I cant do any detail, like ridges or things, without the CV curve tool automatically doing curves.