I got my Garmin Striker 5DV mounted last evening, ran the transducer cable, and (eeek!) drilled the hole in the helm. Now, all I have to do is wire it to the power, get back under and secure the xdcr cable, and I'll do that this evening then most likely, put it in the water to see how it works.
The only issue I ran in to was that it gets in the way just a tad at WOT (WOT sitting in my driveway with the motor off, so I just went through the motion with the throttle). Very seldom do I ever go over 4500 RPM. That's what I'll be testing as well this evening. I know that I go WOT almost never, and even when you hit top speed on mine, there's still some space at the top where it doesn't do anything except advance the control, so I'm hoping that my top speed has already been reached before I get to touching the finder. I just couldn't find another place to put it where it would look okay and still be functional. BTW, I now have two depth finders. I started to remove the Echo 101, but that would leave a gaping hole in the help, and the new one wouldn't quite cover it all, plus I'd have the same problem with the new as I do with the old in that I'd have to look way down and around the steering wheel to see what's going on. I didn't like that with the original. So, now I have a backup just in case the new one goes on the blinks. I have my new xdcr mounted beside the original. Had plenty of cable to make the run. If it gets in the way of full throttle, all I have to do is turn the Garmin sideways until I get done with the WOT. I do like the swivel mount.