How do you guys think a plant would react to intentionally stretching it when you switch to flowering by raising the light? Would the buds stretch up towards the light while flowering creating bigger buds?Or just decrease it's yield? I imagine this in a scrog by the way.

A plant only has so much mass they can produce during a given time frame. They can produce the mass as stalk and leaves or they can produce bud or a mixture of each but there is a limit to the amount of energy they can put out. Any expenditure of the plants reserves to grow stalk and leaves will take away from what they have for bud. Most of us grow SOG style which means we want small plants, mostly not over 2' high with big-ass buds.

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Yeah that's why I figured a scrog was the method to use. What I'm essentially looking for is short plants but tall buds on a screen reaching toward the light. I was thinking of vegging until screen is 75% full. The way I figure it is the flowering stretch will be enough to fill the screen. Then by raising the light once bud sights start praying, the buds should strech as well no? Or am I misunderstanding something.

Well Jimmy, You might be better off with topping. That would give you more colas, more horizontal bush and less height. I don't think it's ever a good idea for your plants to stretch; it's counterproductive. I don't do SCROG so maybe someone that does can chime in if I'm off base or missing something.

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I left a light too high in the middle of budding one time. One(i don't know why only one) stretched bad and now just has gaps in it where it war previously tight and solid. I don't know why you would want that?

Nevermind then I thought maybe the colas would stretch.

I agree, not much good ever comes from streching