Good luck Cube!

> ...trouble is once you start playing with them you get greedy.

Fillets and NURBS are a naturally occurring pair - sort of like Chocolate cookie wafers and the center filling.

They help express both the fact that mechanical structures rely upon them for strength and are also a necessary for making edges safe for handling.

Of course... if you so happened, by chance to work in the "throw-away" room at the OREO® factory, 'greed' is easily attenuated by 'gluttony'.

Whenever MoI gets variable fillets someday, I may have to gorge myself and fillet the heck out of every corner on every model. ;-)