Will Falconer, DVM Moderator
Hi Siobhan, and welcome!
Yes, the fact is, there's no science behind repeating vaccinations what so ever, so if you opt in to do this, you only gain risk, no benefit. You live in the enviable position of not having rabies laws at all, so it should be easy to drop out of future vaccinations.
If you haven't quite "owned" the reasons to stop, you'll want to read two key pages I've written: Vaccinations: Efficacy and Vaccinations: Safety. And there's the Facebook page now filling with stories of the damage done to animals whose owners opted in to the vaccinations.
All the best with your pack!