I'll have to say. I thought I lost my Garmin Echomap 73sv today. We were crashing some serious waves and the finder came loose out of its cradle and over the side it went.  I thought it was gone.  Circled around and after searching the waves for a minute we saw something and low and behold the thing floats.  Pretty well too. Scooped it up in the net, popped it back on the cradle and it fired right up. I for sure thought the fishing trip turned real sour. It's nice to know that if I ever have fumble fingers trying to put it on or take it off at the dock or ramp and I drop it in the water I don't have to worry as much.  

Wow! That's awesome to hear! I have the same unit and am always nervous of losing it. No fear from now on. 

nice