I've been running mammoth for around a year and a half in my organic garden and I've been thinking about adding it to all my rooms but the price tag is a big pill that's hard to swallow. Before jumping the gun and dishing out the bucks for a big jug I figured that I should take the time and do a couple plants in my current grow. So right now I'm at the end of week 5 and I'm glad I didn't buy the jug, i am disappointed that I was spending cheddar for the last 1.5 years for no reason but at least I found out. I run dtw coco under 1000w de gavita's and my little experiment showed no increase in yield at all if anything the plants look like they'll be putting out less then the plants that where running without the mp. the plants do look better and a bit happier but less bud.....so far, I still have 3 or so weeks left so unless a sudden swell and growth increase happens in this time I will be spending my $ on something else.
I know a lot of people swear by this stuff so maybe its my combo of nutes I use? For anybody else running it I think u should try a side by side on ur own setup before throughing down $$ on something that might not be giving u the gains that u think ur getting.