Hi neo,
here's a tip from a tutorial i found in net ...
>> Maya has built-in automatic nurbs tessellation check located in the render menu. If you want to render your nurbs scene, all you have to do is select all of your nurbs objects, go to the render menu and select set nurbs tessellation, apply this function, then render the scene, it will reduce the gaps automatically. This feature evaluates a set frame (s) and automatically determines the optimum tessellation settings, which results in smoother surfaces without over-tessellation (of course this saves time and memory).
Hope that helps u. Or u can try this one ...
>>. Every time you're finished with fillet & trim, select your trimmed & filleted objects and set/turn on Advanced Tessellation and set number of UV to 20x20 (or higher as per ur requirement)
Creativity is allowing yourself to make mistakes. Art is knowing which ones to keep.