I have a 2001 Optimax 150 hp engine in my Bayliner Trophy. I purchased the boat used and it had a Smartach and an analog speedometer (that's never worked). I later installed a fishfinder that provides speed info so I don't need the speedometer. However, I had to replace my digital Smartach when it became unreadable, and now the second one is fading out. Also, I hate having to scroll through these gadgets while traveling at breakneck speed to determine engine water psi, temp, etc. What do I need (besides the analog gauges) in order to convert from digital to analog? Secondly, will I still be able to use my DDT to perform engine analysis? Additional note: 2001 Optimax apparently doesn't support the Smartcraft pigtailing of gauges the way 2002 and later Opti's do.