Can someone answer a couple questions for me?

Hey all.... this is my 4th harvest and things havent gone as perfect as last ones due to temp (gets up to the high 80s).... anywho,..I had 6 plants, 2 warlocks, 2 nightshades and one blue moonshine and one sharksbreath... I switched to flower on May 5th. The Sharksbreath was ready at exactly 9 weeks, one warlock went 69 days and the others still arent ready?!?! its been like 77 days.....I may chop other warlock tonight as all triches are cloudy or amber but my Nightshades still have some fresh white pistols and Blue Moonshine is like all white(finally starting to turn....) is this a prob? All strains said between 55-65 days and its day 77. I know with previous harvests they all went longer but they looked more "done" than these.... Should I chop the other warlock tonight? The triches say its ready but why are there still some fresh white hairs? 75-80 percent of hairs have changed.... and the blue moonshine is like a freak of nature, its in a 1 gallon grow bag and its almost 4 feet tall, huge cola and chunky super dense nugs that are just now beginging to frost up... still all white hairs... whats goin on with that? 77 days wtf?
thanks

i have always found that the trichs tell you when and not the hairs. for some strains, most of the hairs dont change colors, they will stay white until harvested and drying.

i flowered a great white shark for 9 weeks. all red hairs cloudy trichs
i flowered a white widow 9 weeks and mostly white hairs and cloudy trichs.
i feel these could of went at least another week or 2 longer, but had to chop. now the clones are in there and they are going for 10 to 11 weeks before harvest.

Don't worry about it cause the seed companies are a bit optomistic on harvesting times.

Thanks Smoke and Coke and Warlord.... My sensi stars went 83 days so I guess i should just be patient. when they are done they are done... the sharksbreath came out real nice and the warlock I harvested a week ago is nice too.. pinkish, peachish hairs and very sweet tasting and smelling, great happy high.... anyway, thanks guys, Ill just be patient. im just confused by this blue moonshine cuz everything i read said they finish pretty quick and dont get tall... this is tall and taking forever. It is looking good though so I wont complain. perhaps I got a sativa pheno??? I dunno, anyway thanks again