First I would like to say thank you for posting your grow journals they have been very informative!!! I have read your first two grows and I saw in one of your post that your friends purchased the Pro Grow 400. I was wondering how things are working out for them? I was on the fence as to which LED brand to go with however after reading your journal it has pushed me twards the Pro Grow brand. So I guess my question for you is it worth purchasing the 400 over the 260 for my 4'x4'x7' grow tent? Or are they comparable?