new growth very end of flowering

Foxtails from heat or possibly the plant being to close to the light. This wont change your harvest time and wont cause you any problems. I havent had it since i improved my setup slightly but wasnt an issue. Just keep growing and dont let it through you off your harvest time.

This is caused by heat and/or light stress, too much red in some sativas that evolved close to the equator can also trigger this. I think you should keep it going untill you got the foxtails at cloudy and the buds themselfs done to amber, just try to make it in such a way that nothing is too imature nor too mature. Foxtails look good imo, may be some extra work but looks good. Just keep growing it as you were so far.

At this point I'd check the trichomes and see where your at. I've had a few plants do strange things at the end of flowering. I personally would just give the plant water from here on out. From the looks of it the foxtailing isnt gonna get any better so the decision is up to you.