Yes, that would help.

Meanwhile, here is a method that works well for any shape wing;

Take the wing off the airplane.
Measure half of the distance from the center of the wing to one wing tip.
At that point, measure the distance from the leading edge to the trailing edge.
Still at the halfway point, measure back 30% of that distance from the leading edge and make a mark or put a little piece of tape on the wing.
Now do the same on the other wing.
Use a straight edge to strike a line connecting the 30% points across the center of the wing and make a mark or put a piece of tape on the line where it crosses under the fuselage.
Put the wing back on the fuselage and measure from the leading edge to the line at the side of the fuselage.

That measurement at the side of the fuselage will put the CG at 30%, which is a good starting point for a sport aerobatic model.

Jim