hmm maybe it's me eyes then, as at 100 yads/meters I CAN'T obviously differentiate the sight against the black bull. Does anyone white out the sight so it can be seen against the balck bull on a center hold?
I've just started reading the instructions link but am at work so can't do it all today. Historically I have used a 6 o clock hold, but the sight top and black tend to blur together.