Ya my plants seem happier under cmh, didn't know they are going to make a 1000w cmh, that's fucking awesome! One thing I notice is cmh cuts down the early yellowing that hps can sometimes cause, i actually rotate 1000w metal halide bulbs in my flower room(plants love it) I veg with t5s and my plants would be get a lil stressed going straight from being under t5s to getting slammed under 1000w hps. I tend to dial it down to 500w the first few days, then up to 750 for a few more, then crank it up to the full 1000w and off to the races. Seems to help the plants out. Cmh definitely produces some triched out plants, looks like i dumped some fishscale blow all over my plants!