All women tenni splayers are going to have this problem simply b/c your not going to see any player on the wta tour to hit serves in the 130's or high and lets face it anyone in the top 100 can handel a serve from 110-100... thats why power alone wont cut it. All the top players are going to hold more easily b/c thats why they are top players but Venus nor Serena lose serve anymore than the other top players.
Princess of Power: Serena Williams
21 time grand slam champion, Tours best fighter, Olympic Champion
Queen of Grass: Venus Williams
7 time grand slam champion, Olympic Champion,
The Tour Standard! .... still haha!