I had this RD set up on my road bike in a 9-speed configuration. I've moved the whole shebang to my cross bike but am having a weird shifting anomaly that I can't seem to adjust out. Basically, the 13 cog on my 12-25 is skipped in both directions when shifting. I'm wondering if the RD might be configured for 10-speed (since it supposedly can work for both) but I can't find any documentation on Shimano's site that explains the difference. Can someone explain the difference on using it for 9 or 10-speed? Could having it setup for 10-speed be causing this particular shifting issue I am having?