Hi Bob,
That's quite a good smooth image & amazing that it's only 48 minutes with a stock DSLR -
shows the benefit of a dark site.
You could get that backlash adjusted out & maybe also try the mod I did to my NEQ6 pro:
see here:
http://www.flickr.com/photos/2471943...in/photostream
& here:
http://www.flickr.com/photos/2471943...in/photostream
cheers
Allan