I work at achieving the best balance between yield and strength possible. Unlike
@RM3 I am firmly of the opinion that the two goals are NOT mutually exclusive. Much can be done to improve both aspects without doing things that promote one goal at the expense of the other.
I'm running 860W CDM Allstart lamps because they produce more resin and better flavors. I get lots of people telling me that my produce is better than a dispensary's top shelf, often telling me that mine has achieved "best ever!" status for them.
I also think there are a lot of factors involved, not all of which are objective and quantifiable. Many are based on personal preference and of course on the biology of the individual involved.
Early results from my COB LED rack seem to indicate that it's quite capable of producing very high quality cannabis; dense, oily, pungent and powerful!