I pretty much have a good command on my serves: down the T (Duece/ Ad), body shots (deuce / ad), and wide out (on Ad). However, my archilles heel is serving wide out from the deuce side. I am not able to serve consistenly with a slice that kicks the ball out instead of going straight to the forehand (righty) of the opponent. I did manage to serve a couple of wicked slice but I cannot seem to be able to duplicated it without getting crushed with a forehand return. I used to be able to do it before when I was using the continental grip and toss the ball at 1 o'clock. Since I changed to the eastern back grip for my serve, I lost it - although my other serves were much more consistent. Can you serve a slice using eastern back hand grip, or should I use a continental grip? I did not want to move change grip especially during a match - I tried it and it screwed me up on my serve.