Opti Model 1-225D73FY, SN 1B387675
Smartcraft trim gauge has always read 0 when trimmed full down, little over 6 at full tilt at speed.
Last outing, the gauge would show from 1/2 to 3 for full down, +6 to that for full up. Gauge needle moved appropriately and smoothly as the motor went up or down.
Thoughts about what's broke?