Well, after procrastinating for a whole year (
), I finally took the time to take the boat apart enough so I could mount the smaller transducer on the transom and move the SI/DI transducer.
I had to fish the cable through my boat, from the transom to the console. I tried doing it without using a fish tape/snake, but it was a no-go. OSo I ran to Home Depot and picked up a cheap residential model for $10. Still took 5 or 6 tries to get it through to where it needed to be, but once that was done, the hard part was behind me.
I mounted the transducer on the transom in the same exact spot where the previous two transducers were mounted and adjusted it so the bottom of the transducer would sit a little less than 1/8 of an inch below the hull, with the hopes that it would be deep enough to still read at WOT but not deep enough to create significant drag while running at WOT.
I got everything put back together late Friday, in time for my tourney on Saturday morning.
When we blasted off on Saturday morning, I ran wide open to my first area, which was a little less than a mile. There was a mild chop on the surface. My unit held onto the bottom depth, although the actual image of the bottom did break up a bit a few times. Later on I ran again with less chop and it maintained the image and the bottom depth almost perfectly.
I believe lowering it another 1/16 of an inch will do the trick.
Also, based on my research, there is no switch box needed to run two transducers on this unit. So I'm hoping to get the transducer Y cable in this week and get it connected, so I will be able to use the small transducer for high speed running and the large SI/DI transducer for fishing.
I will post and let everyone know how it all goes.