Speed Control on 2010 Enzo 240 SV

[Donnieb 0]

We have a 2010 Centurion Enzo 240SV and love it!  But the speed control has never worked very well.  It never locks in on a speed, but hovers around a speed (going one mile under or over) as long as you constantly tweak the throttle.  We mainly surf...so we're going between 10-11 MPH. 

We keep our boat in the water on a lake during the summer, and I was wondering if people with older boats like mine have successfully upgraded their speed control systems (and what might be entailed -- do I need to take the boat out of the water?). 

My friend has an AXIS and the speed control locks in perfectly.  You give it gas and it just works.  I'm hoping to find something like that. 

Thanks.

Don