well, strangely enough, I'm shooting easton axxis arrows with 400 spine and I have 125 gr fieldpoints, my vanes are smaller than the blazers.
My hunting arrows are 400 spine and by mistake the guy at my shop ordered muzzy's 100 gr and blazers. I shot the blazer arrows with fieldpoints and muzzy's and they have the same trajectory.
So, I'm sticking with the 100 gr's

Frank