Quote Originally Posted by rnvinc View Post
I spider rig in a very similar manner (waypoint to waypoint) ...

I use the Combo view SI/Chart as I'm approaching my waypoint ... When the Chart shows I'm very close to the waypoint - I switch views to Sonar/Chart to allow the smaller 2d cone shape sound pulse show me if my structure is indeed under my xducer ...

If my Chart shows I have passed that waypoint ...and I didn't see that structure on my 2d image = I know I missed the structure by a few feet left or right ...

Then I immediately switch back to SI/Chart for the SI to show me which side of the boat I missed the structure ...

Now I have definitively located the structure ...I re-adjust the boat and fish the structure ...sometimes hovering over the structure for 10-15 seconds - sometimes 10-15 minutes depending on the fish activity ...

When I feel the fish in that particular piece of structure have quit = I start moving toward my next waypoint ...watching the SI/Chart view so that the Chart can guide me to my next destination // while the SI shows possible new structure (that I place a waypoint on) on the way to the next planned waypoint ...

And repeat procedure ...

(My OCD needs procedure ... )

Rickie
Rickie, I have the 859 di on front of the boat when fishing fairly deep water (14 ft ) it seems when I go over we it could be over to one side of boat quite a bit ( I understand why because of cone angle the deeper the water the more out it could be) this is beginning to bother me so i have been thinking about adding a smaller si unit what's your opinion on this? If it's a dumb idea or over kill just tell me you know I'm a big boy.