To the group,

I have a Merc 5.7 EFI Alpha installed on my 2002 Bowrider.

While cleaning up the outdrive I noticed a blank screw socked on the
cavitation plate.

After researching further, I believe this is where a Trim Tab Anode is
to be located. I don't think one was ever installed by the dealer.

My question:

1) Is this something I ned to install? (I am only running in fresh
water, and the dealer knew that)

2) Is there some other benefit to this gadget? (I also read something
about counteracting propeller torque. What is that?

Thanks for any advice.

Ken (newbie boater since 2002)