HSA, you're right. I like your protocol, it definitely reproduces nature more harmoniously. Did you start the reduction of light each week when the clones had formed roots or at another marking point? How tall were they are 6 weeks of veg? As I understand it, the nutrients don't really affect the plant and cause flowering as much as the amount of darkness it perceives in a "day". Some folks have success in having their light cycle stay at 20 and increasing the amount of darkness the garden receives until flowering is triggered. In that scenario, the total light the plant receives in it's life is increased. The downside is that THC production is at night so the longer photo period degrades the THC. I'm relating this not from my experience, only with what I've heard.