Adam,
I had my hitch reinforced and I am happy with the results, but since I do not know how you are going to use your hitch, I can not advise you as to what you should do. If you have access to a good welder/hitch builder, I would discuss the situation with him and follow his advise if you have confidence in his work.
The most common failure point in your hitch (I have seen two fail there) is where the 2 inch receiver tube is just butt welded to the cross tube with only a plate across the bottom.
Gerald