I just received a Lee holder and Hitech 10stop filter. I will try and find something worthy of a photo soon.
How easy is it to correct for colour changes with the Hitech? (or not easy, as the case may be!)
Are you using the Hitech "Pro Stop" filter, or the older, regular 10-stop? I've got the Pro Stop and compared to the B+W 10-stop it replaced, it is a piece of cake to correct for.