Films order

I'm confused about the order of the movies. I've seen both of them and what I don't get is in Kick Back, the Grandpa (Mori Shintaro) says that Colt, Rocky & Tum Tum has completed his training (I think he said something like that), but in High Noon On Mega Mountain, they still doing his trainings and I haven't seen Knuckle Up, but do they still do his training in Knuckle Up or is that the only film they don't train. I can't remember the last time I've seen this movie, but I can only remember what happens in the film though.