Not saying you shouldn't fix it, but what problem are you trying to address?
If you have a outdrive with power steering, you shouldn't have the trim fin anode. Once the drive is in gear, the prop torque is going to push against the linkages and take up any slack that might exist. Other than coasting in neutral, there is never a time where you won't have more than enough prop torque pushing against the slack to keep tension on it.
In other words, you could remove 100% of the slack in the outdrive, and have absolutely zero noticeable change at the console when you are under way.