Bill -- I would describe what )I think) you are asking for as "Multi-arrow Leaders." ???
Anyone else noticed that the first leader is "attached" to the edge. If you add additional leaders, and then move the view, the additional leaders are not "smart" and do not move with the view, but the original does.
Can you not use the "Other Side" option on the welding symbol and enter in its parameters....but the other needs to wrap around behind the same geometry or point at a different angle/position...