When I first got my '92 Merc 25 HP Manual put on my 15' Weld-Craft back in '93, I was not able to get my Anode/Trim Tab in a correct position. After many adjustments it was always pulling to one side making it uncomfortable to steer. One day I caught some oyster shell that wacked the thing clear off of the lower unit. Luckily it didn't do too much damage and I was able to patch the gouged-out hole w/ marine- aluminum epoxy putty. It has driven smoother than ever since; obviously no pulling. Is there any harm in just leaving it as is or should I try drilling a new hole and replacing the tab?