you did not mention if you were shooting a longbow or curve,the curve will shoot a slightly stiffer arrow than even a modern longbow.i will likely get some serious negatives about this,but in my honest opinion,you are overspined,and that arrow is a little heavy for that setup,heavy as in actual arrow weight,about 12.3 grains per inch.i think a 2016 cut 30" with a 125 grain head would be a better choice.that 2018 spines about 464,which is great for a 65/70# bow.imo,better to be just a tad weak,and a tad light,as you can move arrow impact with a little tweaking on brace and string nock placement.regards,robert