Your horn is pretty cool too. But why do you hate Adrian's angles? Maybe 'cause it's hard to measure and cut? You can pinpoint where things need to go pretty easily really. I personally like equiangular and nearly equiangular folding.The one thing I might change on Adrian's layout is the position of the throat in relation to the cone. Having it offset to the side will make cone movement resistance greater on the bottom than the top, which will make a tendency to rotate and torque the cone and voice coil at high levels. I think I'd modify it slightly so the throat cutout was centered over the cone.