Do two slings equal double the capacity rating?

Question: Do two slings connected in a vertical hitch at the same single connection point (both top and bottom) give you double the capacity rating?

Answer: The two slings of equal capacity will have a rating equal to the combined vertical hitch capacity under the following conditions:

1) The slings are of exactly the same type and length.

2) The connection points of both slings are equal distance from top to bottom.