I've notice people getting this confused.
The pistils(hairs) turning color and shriviling is a sign of maturaty.
However, the clear, milky, amber applies to the trichs not the pistils.
Look at the thrics under your microscope. Try 30-60x.
When the majority of them are milky white, that is peak potency. If they are clear, the are still developing. And if they are amber they are "ripe". Depending on when you harvest the effect will be slightly different.