You want to look at the trichomes not the pistols. Get yourself a jewelers loop to look.
Welcome aboard - plant looks good!
A Jewelers loupe is essential cheap and takes all the guesswork out.Your plants look great, and every grow is different. 2 plants of the same strain can finish a couple weeks apart,and breeders times are based on optimal conditions. They’re at best rough estimates.Good luck!
Like @Weedlover1 said. My last 2 harvest took 12 1/2 and 13 weeks.