Greenisland,
The Q1 isn't so much a hermi as it is a feminised strain. By this, it is always a female plant from seed, as I have bred it back and forwards, introduce new foreign male traits of another plant, etc.. So what happens is that it may throw a male flower here and there, generally don't mature and simply fall off. If I do get a flower that opens, I cross it into another Q1 I have growing at the same time and so maintain the feminised trait.
For some reason, and I have read the same things you have about potency falling away if back breeding occurs too often, the strain never has. In fact over the years of breeding and crossing others into it, I find that every now and again I will taste in the smoke a taste that reminds me of a plant from years ago that was crossed into it.
Funnily enough, I am still not sold on the 1000watt as being better overall than the 600Watt. In 4 weeks time I should be able to better assess the benefit. I still think a 400 & 600 being used together, one as MH and the other as HPS, would be a better use of 1000 watts. So many experiements to do!! I so love growing Cannabis!!!!!!!!!!!!