Regal 3300 Owner's Manual page 179

Trim Tab Indicators
Icons
over tabbed position that can cause porpoising and other unsafe bow
positions.
Refer to the equipment manufacturer's manual for additional
information.
https://www.boat-manuals.com/
Optional trim tab indicators feature port and
starboard icons. As the tabs move up or
down through the activation of the switches,
indicators illuminate the appropriate
directional lighting icons. It eliminates the
task of constantly trying to figure out the
tab position. Makes it easy to reset the tabs
for a balanced initial "down" or "in" take-
off position. By monitoring the icon
position the operator can help eliminate an
Features
6-19