hi fella's,
   wow!, i've been answered!!.....
               please excuse my loose use of terminology, i am quickly  learning that much of what i've read/learned has been, as pimmnz puts it, "interchanged terms"!.
              i do have a fairly good grasp on the dynamics of pitch stability, the relation of neutral point to cg and how the stab's incidence/elevator's trim works  against the neutral point/ cg moment.... much the same as the relationship of the centers of effort and resistance and how a lee or weather helm of a sailboat 's trim will change as the boat heels and the underwater form changes.
     this " basic decolage angle" is what i am asking about. 
         as i see it,...per the print, if the datum line is shown with the fuse drawn as in level flight and the datum line  level during level flight as drawn, my semi sym.-flat bottom wing, with the flat bottom plane of the airfoil section mounted on the datum line, will have 1.5 degrees positive incidence and "by the print" the hor. stab is mounted parrallel to the datum,... the decolage angle is 1.5 degrees positive. is this decent starting point or should i add a degree of negative incidence to the hor.stab. cconsidering the the c/g is moved forward a bit.
        my thoughts;.... the incidence angles are easily adjust with shims at the mounting points of both wing and stab. i say mount them as is 1.5 degr. pos. decolage and see how much trim i need at the recomended 1/2 throttle airspeed......does this sound reasonable??