Thanks for your reply Claire.
I downloaded the pdf file from this post A4983 and A4988 Getting Started Guide
Actually I thought it was one of the Pololu staff members that had written it. I guess not!
What I’m trying to confirm, is that if I wire everything as per the diagram above and have the multimeter set to measure amps I’d be able to adjust the pot and read the difference?
Thanks again for your time.