Hi Rudy,

It sounds like you're getting the hang of it. Great!
There are a few things to remember like matching curves that will make easier
to get good results... I think of it as following the rules of
surface modeling. I know what you mean about rings...even after you have
an understanding of CAD work, rings can be challenging. I'm hoping this one
will be approved by the customer, then I can start making pave' settings on
the sides. won't that be fun! :-)

Jesse