thanks again Micheal,

i don't think this is due to any limitations in MOI, trust me i've tried to model this prototype in many other CAD apps, ones costing thousands (SW) handled the problem less elegantly with even more frustrating results. i'm going to try again in the direction you pointed to see what results i can get that way.

BTW, did you have to create the profiles in any specific order to get the loft to work properly? Oh and is there any way to pause the rebuilding function while one is massaging the points?