Even though she CAN jump that high, 22 inches, I would hesitate to keep doing it as it is very hard on her joints even at 3 years of age. In Agility she would not be asked to jump more than 10 inches which is a safe height for her to jump without adding all the width you are asking her to jump.
She is obviously a very willing dog, which they are as they do very well in Agility trials, but you are asking a lot of her.
She is obviously a very willing dog, which they are as they do very well in Agility trials, but you are asking a lot of her.