It sounds like bg80 is your typical go to. I will tell you your bg80 will last at least 2-3x longer than aerosonic (for a comparison). That way you can figure out if you can squeeze out 12 hours or not. I have no idea how accurate you are. Just don't mishit. I have managed to get about 2-3 months at about 4 hours/week at 28+lbs. Smashing is only 20% max of my game (typically 10%). If you are the guy that hits the exact same spot on your racket every time (like a coach does), I wouldn't expect you to get even 12 hours our of it.