Are These Plants Harvestable?

I took these pictures (clear) on September 15th (the links are clickable):

http://img705.imageshack.us/img705/8339/imgp3892z.jpg
http://img683.imageshack.us/img683/3238/imgp3886d.jpg
http://img20.imageshack.us/img20/497/imgp3894.jpg
http://img856.imageshack.us/img856/4468/imgp3888.jpg
http://img30.imageshack.us/img30/9146/imgp3889vk.jpg
http://img215.imageshack.us/img215/821/imgp3890r.jpg
http://img198.imageshack.us/img198/5876/imgp3893.jpg
http://img11.imageshack.us/img11/6772/imgp3891d.jpg

The images actually consist of two plants. Does it look too early to harvest? My desired harvesting is when the tetrahydrocannabinol (THC) is at its peak potency. I'd also like to receive the largest bounty of cannabis, yet not to where it hinges on the tetrahydrocannabinol (THC) peak potency. 'Cause I've heard waiting longer can increase the size of the harvest but at the expense of more tetrahydrocannabinol (THC) turning to cannabidiol (CBD). They started flowering the first week of August.

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I took (not as clear) pictures today, September 17th, of all four of the plants that are flowering, showing the entirety of each plant as well as four pictures of overviews of flower sites on two of the largest flowering plants and two images of the top flower sites on the two largest flowering plants (the links are clickable):

http://img231.imageshack.us/img231/8915/imgp5999i.jpg - plant one (seems sativa-oriented, to me)
http://img593.imageshack.us/img593/2209/imgp5998n.jpg - plant two (leaves seem a little thicker, stems and leaves have purple in them, reminds me it's got the most indica in it than the other plants)
http://img198.imageshack.us/img198/7/imgp6000p.jpg - plant three (leaves seem to be thinner, is taller than every other plant and is the least far into flowering so it seems to suggest to me that it could be the most sativa-oriented)
http://img24.imageshack.us/img24/6272/imgp5997v.jpg - plant four (this plant was initially grown with two others in that same container so I think it couldn't grow to be large in the vegetative stage, I think it may be sativa-dominant)

http://img12.imageshack.us/img12/7292/imgp6001u.jpg - plant one (image of the top flower site - didn't come out clear)
http://img16.imageshack.us/img16/5600/imgp6002t.jpg - plant one (overview of flower sites near the top of the plant)
http://img809.imageshack.us/img809/7963/imgp6003z.jpg - plant one (overview of flower sites across a greater portion of the plant)

http://img836.imageshack.us/img836/9831/imgp6005y.jpg - plant two (picture of the top flower site - didn't come out clear)
http://img508.imageshack.us/img508/8176/imgp6006.jpg - plant two (overview of flower sites near the top of the plant - I think a different angle of the plant would have captured it better)
http://img687.imageshack.us/img687/8347/imgp6007g.jpg - plant two (overview of flower sites across a greater portion of plant)

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No pics bro...

Oh yeah, ha. I was editing it because it wasn't desirable. It's fixed now.

You have about a month to go.

wait till those pistols go red

Yea, they're not at their full potential, sure you could harvest now, but I would advise against it...

Great things come to those who wait! Looking good so far though man keep it up! Good job so far!

i must say man the pics as nice as they were u cud of give us a look at the whole plant as its very dificult to work out quite what u av there, as regards to what we can see i can say there not ready, also i av done a lil research lately on are they finished or not and what ur looking for is the hairs to receed back into the bud, the hairs will av all gone brown ( mostly ) and then receed back into the bud and then u can rearly see a big difference from what ur seeein now n what u will see in 14 more days or so,, now i no waitin is a pain in the ass but i asure like one of the other guys chipped in and sed gr8 things come to those who wait and he cud not of put it better!! patience fellow toker !!! if u want to get a jewlers loupe of ebay for 2 pound then u can magnify that shit times 30 and see the trichomes change from white to milky and then amber, and depending on ur preference if couch lock or up lifting buzz ( head high ) if u want couch lock u want to see 50% amber if u want the head high then less, but to be honest i av a loupe i flowerd my last bitches for ten weeks and they still dident go amber rearly so i just waited till all the hairs had receeded back into the bud and bingo, gr8 bud plus it puts the wieght on in the last 2 weeks so patience is the word of the day for you !!! more pics wud be nice but of the whole thing rarther than sections of it,, peace out and happy chongin in 2 weeks or so, plus dryin n curing time of course !!!

Looks like they need another month or thereabout.