The best approach is
1. Create a curve
2. Duplicate that curve, move and reshape it (do not add or remove cv's it is very important that all curve have the same number of, or even multiples of, segments - ie 2 to 2, 2 to 4, etc but this is getting into advanced stuff and you will then have to think about parameterization)
3. repeat step 2 as many times as needed
4. select the curves IN-ORDER
5. Loft
Alternatively, you can create all the curves, then rebuild them all to have the same number of segments and then goto step 4 above.
Maya's NURB's tools are very primitive and have not been updated for far too long unfortunately.
"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675
Last edited by ctbram; 01-07-2013 at 01:48 PM.