Hard to really tell from the pics could do with one in a non HPS light
Are any of the hairs changing colour?
Have any of the hairs started receeding back into the bud?
How do your trichomes look? CLEAR? MILKY? AMBER?
I use all of the above to test when mine are ready.
I use a small 60x pocket microscope to check the trichs or you can use a jewellers loop.
J