A SCROG is a grow designed to utilize a small space to reap larger harvests out of fewer plants. If you have two or more 1000w HIDs, and the space to grow them, why not grow more plants using HST, LST, or flemming to produce more buds per plant, that way. You will be able to grow more bud than with a SCROG, because the SCROG is limited to your ability to reach under the screen to train your plants. JMO