I am cosidering running 4 downriggers on my 2520. It looks from the photo that you are running two outboard and two astern with Penn Fathom Masters 4' boom.
I would like to talk with you about how this is working. What are the cons of setting up 4 downriggers? What do you run the aft down riggers deep and the forward downriggers forward? It appears corner radius turns might be a little nerve racking. If you could pm with your phone I will call you, or if you wold rather send me an email.
Thanks
jleitz