Starting a new trapping programme

Kia ora koutou, I look after a small trapping project and we are now ready to start a new, bigger programme. I’d like to be able to measure new results against the old ones, but my set up of the original one was messy and not very accurate - should I start afresh or add new traps to the project we have? I didn’t know nearly enough when I started, so now I’ve learnt more I want to have really good, accurate data for the new lines. Any advice appreciated.