If its me,doing searching.iwould run parallel and then just mark waypionts from si scans.you no,i havnt been a big fan of di but lately i have found a use for it.theres been a whole lot of bait fish in the back of the bays and it makes it harder to distingush the difference between structure and bait fish.i believe the di works best for that.still probally what you said climbing the ledge or drop off the ledge would work best