Is it a good idea to get another wife to spank my wife?

Question: is it a good idea to have another wife give my wife-mom a punishment spanking rather than me spanking her?

Answer:  This would be OK in certain circumstances, such as you worked away from home for long periods or were psyically incapable of spanking her yourself.
Besides that, you should be the one who hands out the discipline as you are. HoH, and it is you who should be the one.

Disciplining your wife for infractions is a very intimate experience that brings you closer together; your wife needs to know you are the HoH and will be firm when it is required. You are her rock.