Tie for Net?

Doesn't hurt to put it up early... better to put it up at the height you want before the plant exceeds that intended height. So, if you need to conserve as much vertical space as possible, make sure you set the first scrog at a height that still allows you to do basic things -- like irrigate. Then, as the plant approaches, slow tuck and train as necessary to reach your end goal for canopy. It's wise to work backward from how many vertical colas you want to fill the space by the end of flower. This way you avoid over-crowding as well as waste time growing unnecessary plant mass that will only be pruned off etc... You don't need to exceed 3-4 colas per sq ft.. that will not improve yield. it'll just cause smaller, more-distrubted bud mass. The net doesn't block large portions of light, so no worries if you set it up slightly early... much more difficult to drop it down on a plant that has already exceeded the height you want to set the first net. Risk physical damage stripping off a leaf or a branch that is now slightly rigid and might snap as they age naturally. scrogs are awesome.. refine your path and reduce wasted growth/resources. This shortens vege time and saves you effort/hassle.