there was a post on convergence mebbe 6-8 months ago. had diagrams showing the different ways you could have the bullets' paths criss-cross and had an example of a multi-distance convergence setting (one for one wing, one for both)... anyone know the post I'm thinking about?
btw, not that I'm all that great, but I've settled on a 225 yard convergence setting and rarely, if ever, open fire outside of 300 yards. (ofc, I fly 6x.50cal birds, so YMMV)