They look pretty weak. I agree with Joe, work until you get it right at 10 yards and then move back. Shooting bare shafts at 10-15 yards is just to make sure they don't plane off the target. I don't think you really get close to tuned or any solid information until you are at least 20 yards from the target and 25-30 is even better. Just keep tweeking and moving back, tweek and move back....
Lighter points, cut your arrows back a bit, those are the usual remedies although some like to adjust things like centershot, brace, or string silencers. I have field points from 100-300 grains and find swapping points the easiest way to tune, at least to figure out what's going on.
This is a good link on bare shaft tuning...
ACS Bows bare shaft planing