"I think that the 2.5 mile to 4 mile mark was the panic period when we were starting to get very concerned."

Look at all the spikes in that area.  Those were the 'sisters giving us hell.

By the way, what are you still doing up?

That is where I changed the batteries I think.  Must have one line of data that doesn't fit.

What is with that 200ft spike about a mile in? I think that the 2.5 mile to 4 mile mark was the panic period when we were starting to get very concerned.