I agree ^^^ the pistils are mostly brown but the bracts are just starting to swell. The plants look plenty healthy so I'd say wait it out until they get that popped-popcorn look to them. It will probably take more than 2 weeks, but your patience will be rewarded.
Planning a scheduled harvest from seed is kinda dumb IMO. Once you run it from a clone and know how long it's going to take in that scenario, then you can think about scheduling harvests; from seed just let it go until it's done.