I remember playing this clown who used to make bad calls on me left and right, but I beat him all the time anyway. Well, I did something to him that makes me wonder if it was the right call. We were playing on a very rundown court with a lot of cracks and one of my serves hit a crack going lengthwise. That was my first no bounce ace ever as the ball hit the crack and rolled fast. I told him we play the court, but in retrospect, I'm wondering if that was supposed to be a let. What's the correct call? Is that a let because he had no shot at a play or is it a super strange ace?