Legallyflying
TO HELP CLEAR THINGS UP
1 Do you fid or prune to induce multiple branches or just LST the main stem? I've got 2sq ft/ plant so I'm worried that fussing will create a monster.
Each plant and even individual phenotypes within one strain, may and will respond differently to various training methods. I have learned over the years that learning the plant prior to scrog is not only a benefit in terms of knowing what to do with it when you are ready to try scrogging the plant, but also in finding the most efficient response that you are trying to achieve. In the vast scheme of things, a plant that does not respond well to stress, is not a plant for scrog. A plant that requires additional training in order to create a bush is also not "typically" an ideal plant to scrog. I however do enjoy the benefit of scrog when growing plants that don't typically bush on there own in order to have a bush load of that particular strain when finished. Keep in mind that the plant choice is just as key a factor in success as is all other factors involved and that your strain choice will dictate what you can do with the plant and what training methods will be the most successful.
Some training methods such as fimming, creates a focus on where energy is being spent. In the case of scrog, it may be seen as a benefit to the inexperienced however the ideal of scrog is uniformity. Focusing the plants energy in one location can also work against the overall concept and not be seen until later. For pre-training of the plant in order to prepare a bush for screen entry, methods can be directly compared to see which is overall the greater benefit. As I mentioned before, different strains respond in different ways however in most controlled studies that I have done, these methods do not supersede that of a proper LST. If anyone would like me to create a tutorial on my personal training techniques prior to screening I can do that please don't hesitate to ask. I do however work each plant into the proper shape prior to entering the scrog.
A good rule of thumb and my best advice for the novice: Train by method of LST early. This will be the first and least stressful attempt in learning what your plant responds best to. If your plant cannot handle low stress, scrap the idea of scrog because screening is low stress training into a mesh...simply put.
2 Is there a reccomended height of the screen? I have mine 18" above the table which only leaves me about 2' of growth space before the plants would likely scortch.
Access below the screen is essential in maintaining a proper scrog. Be sure that the space available is enough for you to work, water, train, etc. Above the screen you should be attempting to create the most ideal conditions for each and every bud site. Meaning equal opportunity at maximum level of light intensity provided. If your producing 65,000 lumens from your bulb, ideally your plant is receiving 65k at every bud site. If that means the center of your screen is hot due to needing the light closer to reach the outside of your screen, your attention should be on resizing the screen down to the footprint size of the bulb/hood, or a cooling effort be made on the light in order to achieve the same concept. Example: if my light is capable of 65k at a foot print of 4 x 4 at 4 feet away from the bulb; that is how big the screen size should be and the distance at which the screen should be from the bulb (granted there is no means of moving the light to cover a larger area) for maximum use of available space and available light. The ideal is to maximize on your potential given the factors involved in your particular set up. It is up to you to determine what is right for your own set up, and or what set up is right for you. Once your scrog is designed properly, your production can be measured based on GPW or grams per watt. You will be able to measure the efficiency of your grow based on the variables that do not include your lighting and screen size and will more easily be able to determine progressive advancement based on production from one session to the next. (ie. what strain works better in your set up)
3 Do peolpe lollipop their plants? Or just pick off dead leaves late in flowering?
I rarely top, I have yet to find a plant that works well in scrog that does better with topping vs LST. Most plants that I choose for scrog are plants that grow into a bush without training. Dead leaves should never be left on the plant. Removal of vegetative matter below the screen is beneficial when the screen is creating a canopy that does not allow for light penetration. A LIM or Light Intensity Meter, can be used to measure the available light at chosen distances. When I can measure that the lower growth is receiving 10 - 15 % less light that that of the canopy, I choose to remove the growth and allow available nutrients to be used on production above the screen. This can easily be judged by seeing that the canopy is filling in thus creating shade.