+1. It is very common to have to do some "blacksmithy" to lugs and other sockets when building. A change degree or two is usually not too big a deal. Placing thick walled tubes into the lug and bending is the typical first effort to shift the angle. Some localized bending of the lug's edges/points is a second step. I try these before I grind the insides. I usually try to bend the angle a bit further then needed and draw the angle back with the edge/point bending. I use a 4 or 6 inch adjustable wrench for this localized bending. Andy.