I run the SD but cannot comment as I have had all kinds of issues since I purchased the lamp.
Health issues have cost me multi grows since early this year, but hopefully I will be able to do a full run and take care of it.
I ran my SD @ 50 to 60% and 20 to 24 inches with no problems during veg, but went into flower about the time my health went south.
I will be starting another grow in early December, got friends making me some clones for that grow.
I got a new grow system at the same time I got the new lamp. I am running ebb and flow with the Active Aqua Grow Flow 5 gallon system. So not only health issues but a big learning curve for both the lamp and grow system.
It will all be ok once my health is better.
My year in a nutshell. Did a remodel and got a hernia. Had to do a cardio clearance because of my age and during those test they found I had carotid arteries on both sides of my neck, 85% on the right and 75% on the left. Did an angiogram and has minor blockage in my heart. Did the surgery on the right side in late May and the left side in early August. A few weeks into Sept. I had a heart attack and they found I had an artery off my heart that was 95% blocked, and they installed a stint and opened it up.
My cardiologist says he believes that since I did not have that blockage when he check my heart in May that after my second carotid artery surgery the increased blood flow broke some plaque free and it lodged in the artery. That surgery was in mid Sept and I am just now gaining strength back and hope to be fully recovered by early December.
Will follow this thread and hope to be able to add some pertinent conversation soon.