If you get her expandable broadheads only use the ones rated for crossbow, those for vertical bows will often open before leaving the bow when fired from a crossbow.
Fixed blade broadheads will work but with the extra velocity and energy those with more solid blades seem to work better with less blade failure. I have used G5 Montech for crossbow and been very happy with them. Others use Slicktricks with good success as well.
Loc: Jackson County
I use NAP Spitfire's out of my crossbow. Great blood and short tracks on all of the deer I have killed so far except for one doe that I hit high behind the shoulder. She ran over 100 yards but left a trail that was easy to track.
I tried the Rage crossbow broadheads and had not one but three open up in mid flight so I dumped them. I use G5 Montec 125gr crossbow broadheads with my Mission MXB-360 crossbow. They shoot fine and I shot them out to 40 yards to range in the HHA Optimizer Speed Dial I threw on my crossbow. I really like the HHA wheel and it's well worth the money.