Snap objects by vertices

[glm]

Hello All,

This is my first post.

I found this software through a friend who has designed an aircraft for Great Planes RealFlight G3.5. I'm hooked...

I've been working with AC3D for a day now and must say it has an incredibly intuitive interface in comparison to other CAD programs I work with at present.

I am having trouble snapping objects by vertices on a repeatable basis. I have optimized verticies, surfaces and reduced. So I believe the object - if it is indeed an object is clean as it were...

I have been able to (in the same drawing) do this operation with other objects after selecting the various verticies with ease.

Not the case with these particular objects...

I am trying to attach the nose cone of the float to the temporary center bulkhead of the float at the bow end.

I will attach the file in question for critique.

If someone would be so kind as to point out what is most assuredly an obvious error on my part - I would be grateful.

Thank You

GLM