Erik, your post #117 proved very accurate for me two nights ago, when I was out with the 10x56s for over an hour. Calm winds, no moon, reasonably dark overhead for my area. On a dark night, the 10x may not have a lot of reach, but the bright view presented by the large objectives makes it much easier to find faint, extended objects. For example, I was able to find open clusters M103 and NGC 663 in Cassiopeia without difficulty. I didn't want to stop using them, the only thing that made me come in was the cold.
Thank you all for your recent feedback, I think these SLC 10x56s have found a home.