Recently I have been using a full western grip. I have had my good and bad days. What I am most annoyed with is when I hit the topspin lobs on the run and such. What I can do with this grip is sometimes flatten it out to hit good winners. But I can not always do this and when I do not I hit up easy balls for the opponent to put me in a defensive position. Continental with a little bit turned to a western seems to be the most natural for me. I have hit with it on a wall and I like it but have not tried it on the courts. Is it better to stay with the old grip or try the new one and what are the advantages/disadvantages of both grips?