By "unintended effects", I mean 70 homer guys become 48 homer guys while 48 homer guys become 45 homer guys and everyone in between becomes 46-47 homer guys.
And it's possible that such a thing has happened. But snatching a couple of players from your system, at mid-season, and saying "LOOK!! THEY AVERAGED 31 HOMERS EACH FOR THE LAST THREE SEASONS AND NOW, AT GAME 84, THEY ONLY HAVE 18 HOMERS COMBINED!!! SOMETHING IS WRONG!!!!" is stupid.