Female Seeds Grapefruit

Has anybody grown this strain before? The packet says 8-9 weeks flowering.. I've done a lot of searching and everything I've seen says 65 days at the most. I'm on day 66 and I have lots of FAT colas but I still have way too many white pistils standing up to think about cutting her down now.. The thing is that I either have to chop tomorrow (not likely) or wait another 5 days.. that would put her at 72 days. It's supposed to be mostly sativa so 10 weeks and 2 days isn't necessarily a long time but I just haven't found anything else saying people have gone 10 weeks or longer with this strain