Yeah AKR sounds like a top smoke. Got Green2 has just finished 2 I think..
Planning on getting another MS006 in the summer, they are a top light. You just have to get the light heights correct and get your self dialled in. Takes a bit of practice with LED. And for the price you can't go wrong. Dan at GN says they are comparable to results of a 400w HPS...
Still unsure of the yield though, maybe 1.5 oz would be nice