Can someone help me with this one. I followed along with Michael McKinley tutorial on modelling a car at this link https://www.mtmckinley.net/tut11.html. I'm someone stuck on extruding along a CV. I set the Extrude Option parameter to the same as in Figure 15 but not able to get it to extrude correctly. Can you guys take a look at my source and and let me know what I'm not doing?