I just found out what's been the plague of mine!
When i first purchased game and configured controls on keyboard, I made "left control" my B1 and "Left Alt" my B2. This is a little switch from the default.
Well, I switched those back to default just messing around, and my problems are solved. My slice goes deeper on average and so do my normal strikes, which was my problem before, so often my shots went so shallow. Nobody could understand. Well, since i changed to default, everything is fine. After weeks of frustration and NO sympathy!!

So i post this to warn others of this configuration. I wish I understood why the game behaved like that. Anyone understand???