Ahh, there's the rub my friend. I say trichomes and pistils are just that, with variations due to genetics and hybridization but don't they all curl and amber meaning the plant is done? Ripe is ripe? Naturally your diff strains are doing so at diff rates, non?
BTW pic 4 GG4 you have brought the light out of the inner recesses of the bud which highlights the calyxes with pistils growing out very well! That's what brought these questions to my mind!