If you want to become a professional, then you have to have strengths and stability. Weakness on the tour is not acceptable, it just doesn't work. Good players will always find a way of exploiting an opponent's weakness. Strengths are shots that can put an opponent on the defensive during a point. Stability is a player's ability to stay out of trouble but not really mount an offensive shot, like a good overall backhand that is consistent but not dominating.
Weakness is a shot that is inconsistent, vulnerable to mechanical or psychological breakdown.
Hey, I'm 5 foot 5 and a half inches tall, so don't tell me that I don't know what it's like to be short. I know the advantages and disadvantages. Truth of the matter is for many years I have seen players who are around the 5' foot height successfully compete on the pro circuit. I am of course taking into consideration that both players are equally physically fit and mentally tough. People say that tennis at the top levels is about 15 percent skill and about 85 percent mental toughness.