Thanks all. I have been looking at a 4" Model 10-6 heavy barrel. This thread has convinced me to get it unless it is already gone when I go back. If it is not gone, my gun fund will be bankrupt again.
I bought my first Mdl 10 last August and have thoroughly enjoyed it. The only reason I don't shoot it a whole lot more is because I have a Mdl. 14 tack driver that is my go-to paper puncher.
Looking at your photos, I kind of wish mine wasn't so perfect. I'd wear it in a holster at the range if it already had a little wear on the barrel and cylinder.