Isn't there always the question of, should we try to play our BEST tennis, or should we play what is winning?
Winning, we might push and play conservative, winning more, but never getting any better at tennis.
Best tennis, we will lose lots of matches, for sure, but we also learn to hit harder and heavier shots, learn where and when to hit them, and make the attempt to ADVANCE our level of tennis, not just winning where we already are.
Should I max out my winning percentages at 3.5-4.0?
Or should I hit like a 5.0, miss like a 3.0, and play like a hard hitting 4.0?