Flowering a plant is kind of stressful on it for not being able to find a male to re produce with so would certain pheno's do better than others? I guess what I'm saying is, certain female phenos will be able to handle the stress the better? Therefore creating a better plant?
Yeah man, but it's not just the sensimilla technique that creates stress for the plants though. The genetics and breeding have a huge impact on what type of environment the plant will thrive in. An award winning keeper in my garden might only be ok in your garden. That's probably a little extreme, but different environments, feeding regimens, etc. bring out different traits in different strains.
The best way to find out what produces the best terpene/cannabinoid concentration in your garden is to try some strains other have had success with and fine tune your setup. You can either optimize your environment for a specific clone/phenotype (monocrop) or optimize the environment so that most strains/genotypes perform good enough.
Terpene combinations and concentrations are probably what you are interested in with the lab testing. A lot of labs are testing for these now, but it is still fairly new to the industry. Most people understand that high THC concentrations are one type of potency, but there are other factors at play which we don't quite understand yet. Terpene and cannabinoid combinations are very interesting in terms of individual's perception of pleasure, potency, etc.