@mcbroomf - Thanks. Hiding the tripod shadow is definitely tricky sometimes. PTGui Pro makes it a lot easier.
You can move the tripod and shoot a down (nadir) shot of where the tripod and shadow were during your shot. Then using viewpoint correction, stitch that shot in to fill the ground. You have to add control points manually, but it's usually much easier than retouching.
The light is really pretty in that pier shot, and the perspective is a lot of fun in the interactive version!
Thanks Joe, yes I do this but not sure I'd be able to get a long shadow out as you've done. You can see that mine were taken predawn or in this last case under cloud.
I'm hoping the link will work OK as I don't have Java on this PC and the pano won't play on this site. This is interesting as it's an installation of huge photos printed on a tightly weaved yet open fabric in Provincetown called They Also Face the Sea. http://www.iamprovincetown.com/PortugueseWomen/
@mcbroomf - I don't have the plugin and my work machine is locked down.
Are you using the masking feature to take the tripod out of all of the shots except the offset nadir? I also use the masking feature to limit what's being used for the nadir. In addition, I set the blend priority of the nadir shot to 50% instead of 100%.