1) Buy a helmet...
2) Buy a 48" B50 string...
3) Put string on bow...
4) Put on helmet...
5) Draw bow...
6) Take off helmet...
7) Pick up splintered pieces...
8) Buy a longer bow.
:D
Seriously, you're asking for disaster/concussion/bruised nuts shooting a bow that short, with a draw that long.
I just wish that someone had forewarned me to buy the helmet. :rolleyes: