My buddy coming out from CA is reading the below from the CO hunting regs to mean that if it is not at least 7/8 inch before expanding, it would be illegal.  I am reading this as at least 7/8 inch when opened.  He knows it is illegal in Oregon and has concerns about using them out in CO.  I will check with DOW but does anyone know the enswer or use them in CO?

 Hand-held bows, including compound bows, must use arrows with a

broadhead having a min. 7/8-inch outside diameter or width and

min. 2 steel cutting edges. Each cutting edge must be in same plane

for entire length of cutting surface.