I shoot 28" CX300's with Blazer vanes. I have had no problems with this arrow setup and the accuracy is great. You are shooting a drop away rest so I see no reason to change to feathers unless you are shooting a large fixed blade broadhead. I did not see what you are using in your sig. Are you having concerns with your broadhead grouping using Blazers? I love to tinker with my setup but sometimes that old saying is right, "If it aint broke, don't fix it."