Do NOT static stretch before a weight training workout, you will experience decreased force output during the workout and thus a compromised workout.
Howver, one technique i have been experimenting with is antagonist static stretching before a set. For examble, if i am training chest, i will stretch my lats. The rational behind this related to the law of reciprocal inhibition, which means when the agonist contracts, the antagonist relaxes. By stretching having a further relaxed antagoinst, you may experience a more powerful contraction of the agonist.
Also, hyperplasia relates to the actual creation of new muscle fibers, either by activation of sattelite cells, or the splitting of new ones. The rational behind stretching inducing hyperplasia is taken from studies in animals, specifically birds, who experienced hyperplasia after EXTREME stretching techniques. In my opinion, this phenomenon is highly unlikely to occur in bodybuilders below the sub elite level. Massive bodybuilders may experience this due to the high intra muscular tension placed on and large hypertrophy of the muscle, however its not likely in the general population. It is unlikely extreme fascia stretching will create this phenomenon.
Finally, static stretching after a weight training workout has not been proven to reduce delayed onset muscle soreness (DOMS). | 
