i never flush. crops to eat don't get flushed, and the plant doesn't just circulate raw chems, it metabolizes them. flushing is not necessary. as for drying, decarboxilation will occur no matter how you do it. i personally dry the shit out of mine, then rehydrate. my dryer is a box, 8x2x8h, with a dehumidifier inside, not vented. temps get up to 85f, and takes 2-3 days to dry two-five pounds. after the initial dry, i snip buds and lay them out in the bathroom and turn on the shower full heat for an hour or so, and let the crisp rehydrate. at that point, it's fully dried and the re-hydration is the cure. 3 days to go from harvest to finished product.
let me peruse your pix, and i'll give you my opinion of how much longer i'd let them go.