Yes, so far the HPS plants have bigger branches and more leaves and budsites. But, I'm not surprised since I'm running 1K HPS beside 480w LED. I don't care how efficient they are, you can't honestly compare the two.
My goal here is to maximize yield with what I have. Which is more than what I had before adding the LED. But I have no expectations that the LED side will outproduce the HPS side. Maybe if the wattages were not so vastly different. These LED are more designed for tent growing. I should really be running SE7000's beside the 1K HPS.. wink wink SF..
That said, for what they are they're performing well. Just not on the same playing field as high watt HID.