outdoor w/endo finish, can i push'em past 13-14hrs?

their just starting to put on some nice sugar leaves. still many monoleaflet leaves emerging from main colas. i think i should expect some more bud growth and a continued lengthening on the floral clusters over the coming weeks. CAN'T WAIT!?.. anybody extending photoperiod during peak and late maturation?

both these fine ladies are goin on their 26th hr of 1000w love today. they will be @ 9ine weeks on sat. and i'm considering running them on a 36/12 cycle till then. any thoughts on ramping thc production here.

day 73 of flower, buds are maturing nicely. kinda realizing that these plants are starting to look entirely of bud, no more fan leaves. only pulling the dry crispy leaves from the colas, but the new emerging mono and tri leaflet leaves are green a very short period before they turn yellow. and not a single large shade leaf to be found? any thoughts..