Everyone stresses about handling the 11.5 oz racket.
Maybe the weight of her racket should be based on the speed and spin of the incoming balls she sees.
No reason to use a 11.5 oz racket when the incoming balls are not WTA level, as the WTA PROS use 11.5 oz rackets. The balls she sees are much slower, so maybe a 10 oz racket is plenty heavy, and it would aid her swingspeed even when forced to run and stretch
Just like in men's tennis, the pros are using an average weight around 12 oz. WE do not face the pro level shots, and don't need anywhere near that weight of racket. At men's 4.0, I think 10oz is more than heavy enough to rip winners from anywhere on the court and to return winner attempts.