Planing comes from too light of weight up front. 150 and more will give better results as it boosts the FOC and makes the broadhead tipped bolt easier to tune for improved flight. Short bolts need weight forward and is why xcal recommends them. I know several excal users that thought they knew better and wanted more speed and went with 100 grain heads until they learned first hand why 150 (or more) gave them better flight than 100 grain heads. Dont worry about speed and trajectory since you have a multi reticle scope that you can sight it for all your shot distances. Get your hands on some 150 and 200 grain heads and watch your groups tighten and your penetration improve and the noise of the bolt discharge decrease.

Last edited by sharp_things; 06/11/18.
Member Wisconsin Bowhunters Assc, Wisconsin Traditional archers, Pope and Young, Asbhy 100,