So, I was being dumb. I installed the SteamVR version of PSMoveService, when it should have been the normal one. I now only have 2 controllers, when selecting PSMoveService Bridge SteamVR Driver, which is good.
Unfortunately, the controllers still aren’t in front of me. they’re off in the distance on the left. Is there any way of calibrating them, so they’re in the middle, where I am, or do I have to try and move them manually?