Originally Posted by Power Player
That has nothing to do with the links you quoted. That site is an excellent one that explains things rather well.
If you are consciously pointing the buttcap at the ball then thats not good. So OP, I'd suggest getting the feel of it and then you will see that your stroke will just do it as a result of the sum of the parts.
In the video on the second link, the guy says a forehand should feel like pushing a ball down into a bench and then rolling it. I don't really know how else to interpret that other than rolling over the ball.
The first video does say the racket angle should remain constant, so I can see I may be misinterpreting it.