Like someone else said ; I have no experience with the HP pistols , but several women in My group have the carbine , in both 9mm & .40 S&W . Once I showed them how to properly clean them , the guns ran sweet . No problems , as long as they ran decent ammo in them .
One of the ladies runs my 9mm load thru hers , and I know for fact that she's shot over 1,500 rounds this year . And no malfunctions , mis-feeds , or mis-fires .
Like Jared said ; Good ammo fixes a lot of things .