I took it to mean the highest place where you can comfortably hit a topspin backhand.
I find that higher swingweight racquets make it easier to hit high one-handed topspin backhands.
> Eye-level stuff is really the last resort, and it's just a bad option.
Sometimes you get into a rally with the other player hitting high-forehand kickers to your backhand and you have to deal with it.
4 x IG Prestige MP, 70 cm, 376 grams, 386 SW, ALU Power @50