Hi Tim,

re:
> It would be very nice if there was a way to select two surfaces and have the adjoining
> edges 'Joined' so as to eliminate these minor errors.

The Join command can do that to make a joined edge if they are within 0.005 units of each other.

I would like to make something that adjusts control points but it's fairly complex to do that automatically. Here's an example, notice how one surface has only 3 control points but the other one has a more complex shape than can be represented with 3 points:



So it's not possible to just move existing surface points on the one that's only 3 points across so that it will touch the other surface, it has to be refined with more points. There are other things that can be complex about it as well.

- Michael