thanks guys,

you may be right steve. i have never tried this before so i don't know how to actually do it. it seemed to me that a blend with higher continuity would make sense. however the sweep is doing what i want. i'm not sure how it figures it all out but it is doing it.

i do get a lot of graphics issues with the surfaces. so its good to know that it is just graphics and not a real problem. it may be nice to be able to see the actual surface mesh in moi though based on what you are saying. at least to be able to check the real thing without having to go to another program. however, i've got what i need at this point. again my only purpose was to kick the tires on moi to see if its a good downstream program for PROP_DESIGN. i believe that it is. just a little tricky in areas.