Since the less "anti-lift" the tail has to provide,
the less drag it produces; load the airplane CG as far as possible towards
the tail, and think about a way to provide this rearward CG after attaining
cruise flight. I am putting a few gallon reserve fuel tank in its own little
compartment in the tail.

Eric,

 

I'll race you anytime - if you survive.  The rear CG condition leads to neutral (or worse, divergent) pitch stability, hard to keep on top of the beach ball. 

 

Small tail LNC2's would not benefit from that concept.  The faster you go, the more the tail must be trimmed for anti anti-negative lift, not more.  Maybe you should read more about the LNC2 wing before you put the bomb in the tail.  Or, maybe you think it would be better to take the flap out of reflex to pitch the nose down (change the center of lift) and take that drag penalty.  Or, maybe change the incidence of the wing.  BTW, swept wing airplanes are totally different and Bleriot never built a "high-performance" airplane - He didn't understand the drag reduction in laminar flow.