That's great Mark, I'm glad that will work for you!

It tends to be a bit tricky to get that "build extended then trim" modeling instinct down, it just is a bit counter intuitive to think about building a part of something that you don't actually want at the end.

But it can greatly help to simplify the initial construction with a more regular topology so it tends to be a good habit to develop with NURBS modeling in particular.

Anytime you find yourself kind of sticking together smaller individual fragments and wishing they were all smooth to one another or behaving similar to being a single surface instead of separate pieces, that's a good warning sign that a "build extended then trim" approach could be worth considering.

- Michael