So, I know it's been about a month since you heard from me. The grow is still going strong. I'm a little over 6 weeks into flowering, buds are forming up nicely. The pistils have started to turn orange/pink on all the plants. Nice tric development on all buds. I'm very satisfied with my first grow so far!
Hard to tell exactly how much longer they will need, but I'm thinking the two more weeks to give them 8 weeks of 12/12 will be about right, maybe one more. I'm not sure since it's my first grow, but I have read plenty to know when the best time is. It's just a matter of seeing it for myself in person now.
The 5 gal pot with two plants in it hasn't caused any issues so far. They both are doing fine, one is a little ahead of the other (about a foot taller and more developed buds). Overall, they are all doing fine, still very green and happy looking. I'm planning on feeding them nutes one more time (tiger bloom) next weekend and then just using molasses and maybe a little nitrogen (just a little) for a week, then just molasses. Essentially, just cutting back on nutrients slowly and phasing everything but molasses out for the last week or so. I just don't want to cut them completely out too soon since I'm not sure exactly how long they need, ya know.
I will put a few pics of them up soon to show how much progress they've made and get some feedback on them.