Really great quilt that will be loved for years!
I agree with the tying the quilt...after pinning it a bit...and I would space the ties about 3 inches apart because it would be used a lot...but not all in a row... I'd hold off doing ever hexie until I finished the ties 3" apart....you may not want to do the remaining ties....hahaha!
Good luck! and remember to let us see how it turns out.
Nan