A better use of space & light is to cut out the veg all together & focus on clones & budding plants,vegged plants are not in the best interest of a rotating harvest if you want them all to stay on the same rotation cycle.
Another issue i had when i was trying to get the rotation dialed in with my rotating sog was the different light spectrums,i had metal halide for veg/mother/clone & all hps for budding,the mh was outpacing the finish time with the hps in the bud rooms.
If it was me i'd group all the cfl's together in one veg/clone group & then put both the 400mh & the 600hps together & make one large budding area, in the bud area you'd have groups of fresh rooted clones comming in every 14 days or so,this will give you a harvest around every two weeks, it will also help out with the mother clone situation so your not chopping assloads of clones all at once,this way you can be more selective & cut only large clones which will make larger plants using no veg time, except the time it takes to fully root them.