Crossbows are much easier to sight in than compounds, they shoot flatter so you don't have to be quite as good at guaging distance, basically it's easier to be lethal with a crossbow than a compound.......they have been legal in pa for a while now and haven't had any negative impacts. And honestly, there used to be a lot of guys who didn't practice enough with heir bows who hunted anyway, taking bad shots, wounding deer, I'd rather have those guys shoot a crossbow and kill the first deer they shoot at rather than wounding one or two a season.