mauer's percentage of catching runners stealing has really plummeted this year. because of his lack of enough games played at catcher - if you go to the stats from the mlb homepage and isolate catchers, you won't find him included, as he doesn't qualify............. i found it on his individual stats ...... he is only 9-65 this year .............. 13.8%. not very scary anymore to runners. they are really taking advantage, too. they did the damage this year in only 76 games! (2007 24-45 53.3%, 2008 29-80 36.3%, 2009 19-73 26%, 2010 19-72 26.4%, 2011 (with the mysterious bi-lateral leg weakness) 12-40 30%, 2012 (healthy?) 9-65 13.8%).
How does this translate to the pitcher's he caught. I think you have to factor in how the pitcher's hold runners to get a truer picture his CS % (and all catchers for that matter). For instance, catching for Mark Buerhle every fifth day would could make a poor catcher look capable.
certainly a pitcher with a bad move can be a part of this. i just presented the stat. it is what it is. "lies, damn lies, and statistics". you can truly spin stats however you like. maybe it is nothing to note at all.