Pistol hairs are not the best indicator of maturity, these change colour for all sorts of reasons. From damage to age to genetics.
Same with secondary leaf colour. This can mean problems not maturity.
Best way to tell is get yourself a mag/scope and look at trichrome development. They start clear turn milky and eventually amber. You harvest somewhere between milky and amber depending on preference and strain information.
Get a picture up as mentioned before and it's easier to tell you what's going on.