Bryan, let me first say that your attitude is refreshing for this industry. I the next time I need to purchase protein powder, it will be HSN because I would like to support people like you (and this is not just based on this thread, but from everything I've read since I started lurking here).
I think you are probably right about the glutamine. However, people, myself included, have noticed a benefit from sipping 20g-30g of BCAAs throughout a workout. It seems that it would be difficult to ingest that much Primer pre-workout.
In the future this will be my plan: I am thinking Primer as a pre-workout supp, Glutacene during, Driver post. I will probably cut the Glutacene dose down because of the Primer (and to a lesser extent the Driver).
As far as research goes, there is quite a bit out there on the benefits of leucine (and I guess it is speculated that the others (BCAAs) work in a similar fashion:
The American Journal of Physiology, Oct 2002 v283 i4 pE824(12)
Tissue-specific effects of chronic dietary leucine and norleucine supplementation on protein synthesis in rats. (Abstract) Christopher J. Lynch; Susan M. Hutson; Brian J. Patson; Alain Vaval; Thomas C. Vary.
Diabetes, April 2002 v51 i4 p928(9)
Orally administered leucine enhances protein synthesis in skeletal muscle of diabetic rats in the absence of increases in 4E-BP1 or S6K1 phosphorylation. Joshua C. Anthony; Ali K. Reiter; Tracy G. Anthony; Stephen J. Crozier; Charles H. Lang; David A. MacLean; Scot R. Kimball; Leonard S. Jefferson.
The American Journal of Physiology, Sept 2001 v281 i3 pE466
Leucine and insulin activate p70 S6 kinase through different pathways in human skeletal muscle. JEFFREY S. GREIWE; GUIM KWON; MICHAEL L. McDANIEL; CLAY F. SEMENKOVICH
Granted these are just a few studies to support a "BCAA hypothesis", but interesting nonetheless...(and if you can cite studies on rats for creatine, I can do it for BCAAs!!

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