Interesting. I have wondered about this, but honestly, I can't tell anything from watching on TV. with technology being what it is nowadays, I have wondered if tech has helped teams ID tipped pitches, (of course, then I wonder why it doesn't seem to help us, but that is another topic).
Are you speculating here, or have you seen things at the games that lead you to this conclusion? Have you seen pitches tipped, or are you seeing something in the other teams' response to our pitchers that make you think this? It would seem to explain some of our regression on the mound from last year, especially, it would seem, when we have 2 strikes on a hitter.