When adjusting the look angle, do you use the edge of the adjusting bolt closest to the dish, the middle of the bolt, or the edge of the bolt furthest from the dish for elevation reference? I am replacing a DirecTV legacy used on a legacy Dish Network system with a DP setup that requires the D-tube of the DS-4047. On the Direct is was the edge closes to the dish. I am having a helluva time finding 61.6 again. Is X-ponder 2 OK to use? Thanks