I know I've mentioned this before, but the hull font you're using is too fat. A more accurate font would really help your ships look more authentic.
Meshula posted his accurate font in another thread
http://www.startrek-forums.com/gladi...ML/000001.html
Or you can use this font called Amarillo, which is pretty close:
http://www.tlai.com/med_des/modeling.html 
