Why not 2nd fix it then too?
Because I'm creating new circuits and not a spark is the easy answer. I could complete and ensure it's safe but I can't self certify.
I employ the services of a few sparks through my business, and I can double check what to route where with them in advance (in this case no checking needed, it's literally just a 32a ring). When it's all in but not hooked up, they can make the final connections, test and certify.
In short, by saving them the laborious part of the work I can pay them in retained loyalty as we have a working relationship, and some beer.