Thats alot of hoops to jump through just to get the shape you wanted for a cool logo. The easiest way to have done the logo in my opinion is to use the Bevel Plus tool. Try using Mental Ray ( if you have it ) for your next render. It can do alot more than the Maya renderer can do. I made this logo for my avatar. It was made from text curves, with the Bevel Plus tool and a silver shader, rendered in Mental Ray. The same process can be done with custom curves.