Purple/reddish stems can mean a few things. Most cases it is genetics but if it is paired with Ph issues and yellow spotting on the leaves, it can be a P deficiency. The stems on the fan leaves of #1 of my plants are really red but it is simply genetics. I would say with the way your plant looks, that it is fine.
Or maybe a slight deficiency. I would Ph test before anything.
Yeah thats normal, they not male balls, they are the calyx. A fake seed pod which hasn't been pollinated by a male. The hairs are pistils and will go inside near the end and fatten you buds, looking good man.
All i have to say.. is .. DAMN. for starters, homeboy jbc420 saved your tail on this grow. I just tuned in but I feel like I missed 5 or 6 pages of this! You went from crispy ass fan leaves, to swollen frosty calyxes, good job man! seriously I don't know how you did it, or how much time went in between frying them, and re-development, but your definetely pulling it off.. with a female no less! Good job to That1guy and JBC, you guys provided this grower valuable information and support throughout the grow. I also learned a bit myself when I saw the chart which read soil ph near6.5-6.9. really a bit of a shocker since I thought the taget range was more like 5.8. I feel like sometime yu get more involved with all these elements, the more things can go wrong. You gotta remember, if your working with soil, and a plant, you gotta give it the basics to all essential life, makes sure those basics are kept available but not over doing it.. and let the plant do the rest of the work. good job, everybody