Hey yeah seems like I was being a bit too negative

good that more experienced people replied. And yeah you will definitely learn from this so it can be good to go all the way through.
I just said what I would have done in your position...cos looking at your plants now I think it's going to be tricky to harvest more than 15 g per plant (if you re a beginner); which is still something of course and still good to have 1 oz at the end of it...but in my situation it wouldn t be worth the price and wait...(I am not saying you re gonna get 15 g per plant necessarily, maybe you can get more, dont know)
Anyway, happy to see you managed to get in control of coco; i hope your next grow goes ok.
I ll leave you with an advice though, my personal view cos I am a person like you witch went through a lot of research and had problems with coco...in a few words: IF (and only if ) you are a beginner, invest 20 bucks in a bag of soil and organic nutes and your grow is gonna be 10 times easier.....
Also am not entirely sure, but I'd do some research on the strecth thing if i was you...as lucar above said I don t think stretching them will affect yield. I think you should keep the light where you are supposed to and let them grow...if you wanna keep the lights up to strecth em think could be a bad idea and could give u some lanky ass plant;;cos they re just stretching not making new nodes...

Good Luck