A recurring thread/post on the site is; “What happened to my curve ball?”, “lost my (Breaking pitch X)”, this is the tonic that cures these ills. I find that when a guy starts to have trouble with his breaking stuff, he’s losing the fundemental, grip, rotation, mechanic of a pitch…the reason is generally he just throws if a couple of times in the pen before the game and it starts modifying unconciously, to work on the fundementals of a particular breaking ball while doing long toss you keep those fundementals in mind and the pitch remains “fresh” and fundementally effective…just as Steven just said. 