Wisconsin had the same warning. I personally never got to excited about it. But I guess it should be kept in the back of your mind.
These lead warnings are really getting numerous. Yet when we was kinds we used to keep lead split shots in our mouth and put them on with our teeth when fishing... How could my mother allow that??
I have seen a few of these studies. Generally, they show very little contamination. I think it's just another angle by the anti's. One program in particular, that was targeted, was the Hunters for the Hungry. The meat was found to be very safe.
Even though I too am a product of the Water Gremlin split shot chewing crowd I agree the Barnes are an easy answer to this problem. My experience is that the XPB's are a more consistent accuracy performer than than the TMZ's though.