1000 watt 4x5 scrog...Q's

ok i have a 12 ww clones under a scrog but they are space out alot and going to need alot of time to veg especially to get the middle filled in where the clones are tiny. But I am just wondering if I should take the scrog off for a second and rearrange the plants so that the big ones are in the middle? plus the scrog is really flimsy and kinda pushing down the plants , so Im thinking that I could rearrange it is 12 plants in a 4x5 scrog sound like alot? because it looks very spaced out to me.they are in rubbermaid reservoirs and multi pot fittings. any advice on how i can do my scrog the most successfully?