Rick, there are lots of ways to play the guitar, as you know, and the minute one person says he has found the "right" way, others will come along and play beautifully using completely different techniques. There really is no "best way," and I'm glad of that -- it makes life more interesting.

However, you should know that classical guitarists in more recent times have generally moved away from the high wrist arch that used to be considered optimal. You can do a simple test to see why. Hold your hand out in front of you with a straight wrist, and move your fingers as if you are plucking the strings. Then do the same thing with an arched wrist. Feel the tightness in the back of your hand? That is because anything more than a slight arch impedes the free movement of your fingers. And impeding free finger movement is not generally a prescription for better playing. [The same holds true for the fretting hand, by the way, which is why the standard rock'n'roll guitar player's posture with the guitar slung low can result in carpal tunnel problems in the fretting hand. I learned this lesson the hard way a number of years ago.]

Classical guitarists pay a lot of attention to the ergonomics of playing, and most classical guitarists these days have concluded that the right wrist should generally only be arched slightly, if at all. This runs counter to earlier teachings, so folks who haven't kept up with the field may still be under the impression that good classical guitar technique requires a high-arched wrist. By all means, experiment with different hand positions, but remember that the more extreme positions can cause problems.