I WILL SAY IT AGAIN there are things you could do to 'improve' the distribution of mass (dom). including, moving the mass of THREE servos nearer to the cg/c-m. c-m is center of mass. the use of bellcrank linkages would allow the OPTIMAL location the mass of the elevon servos; eg., nearer to the c-m and to the center line.
I WILL SAY IT AGAIN there are things you could do to 'improve' the distribution of mass (dom). including, moving the mass of THREE servos nearer to the cg/c-m. c-m is center of mass. the use of bellcrank linkages would allow the OPTIMAL location the mass of the elevon servos; eg., nearer to the c-m and to the center line.