The ladder test is to tell you where the bullets exit at the same position. Where a node is to help with variances. That one kernel can be enough to cost a world record, even if its only 1/4 inch at 1000 yards. I have seen many relays lost by way less then that. When you lose your relay, you go home, no shootoffs. Long-range BR is different then other shooting venues. If you don't load very particular, I guarantee there are another 4 or 5 guns in your relay who do. Matt
If the ladder test is to find a node to help with variances then that variance is very, very small if it depends on one kernel.