Yeah. when I started SR'ing, I had about 5 completed games of Colosseum (I have a lot of memory cards). I decided to go back to them and I found I hadn't caught Suicune in 4 of them. I got fed up with SR'ing once and went back to catch it in those games, and lo and behold, it was that Timid one. The other 3 were garbage, though.