Mud glassing is absolutely fantastic. I use FG mat in the large flat areas and cloth everywhere else. The end product is so tough if you go thick enough that my friend cracked his hand when punching my chest plate. I warned him! Its a bit heavy, but totally manageable, and a million times easier that regular fiberglassing. I wouldn't ever rondo without the glass. It is too flexible and prone to cracking. FG is a key step!