I used to, finally got too fed up with the numbers jumping around and lost all confdence in it. So I bought a Depth Raider last year and love it. Most of the guys I know have the Subtroll since Moor is local right here in Buffalo, NY and have fished on several boats with that unit and it is just as reliable (actually, the same technology as the Depth Raider, which Moor developed around 20 years ago) I just like the digital display over the analog, otherwise, they are both great units. As the others have stated, maybe the unpredictable current situation is worse here on Lake Ontario (especially here on the west end with the Niagara river Outflow) but I would give up my graph before my down speed and temp. Tim