My boat is a 1993 23.5 and I have noticed that the clinometer on my boat has become quite sluggish. We will be at a minor heel and the gauge will read zero until we're at a good heel (over 15 degrees) then it will suddenly begin to read. I presume it's time to change the meter out. It's the standard black Lev-o-gauge meter. What is the best way to remove the existing gauge before I stick the new one on?