I only fired a bare shaft a few times, and it wasn't one of my own arrows and was also a different spine.

I guess I'm going to try some 75 grain broadheads and see how they fly.

According to the chart for Carbon Force arrows, the spine is OK for my arrow length and poundage, BUT it is at the top-end of the scale.

Another question......my arrows are overhanging my rest by about an inch and a half. Should I trim these shorter to stiffen the spine?