I say the higher poundage you can shoot effectively the better. You can however get by at...at least thirty shooting around 50 pounds I would think.

I'm not real comfortable at 40 yards and I'm pulling 70 and have been shooting for years.

I'd recommend keeping your bow set at what it is...and encouraging your girlfriend to get her own.

More than likely you won't be together with her forever, and once you mess with your bow you'll have to re-adjust it again later on.

Too much trouble if you ask me. Good luck.