The 20" red hots are 2" shorter than recommended. The problem is not with the arrow, you can shoot them, but when you have a broadhead on the red hot you have a heck of a time loading the arrow into the bow without cutting yourself. As to 325gr arrows ... I've only shot them that light out of my vertical. The lightest arrows I shot out of my Strykeforce were short 20 inch 390gr Dan Miller GT LazerII's. They sucked as much as Wyvern's Gold Tips. They flew at 392fps though. LOL