Resealing the Edge of the Roof, Dicor, Eternabond, or Both?

I wrapped Eternabond all the way down to the gutter on my trailer about 15 years ago. It's been more or less bullet proof. The only caulk I removed was to give the tape a smooth surface to adhere to. I glommed a couple layers of tape over the those corners, then used a little self leveling caulk on the edges.