Pen or pencil - AM Level 3

Just wanted to know if we can use a pencil for the template questions in the AM session of the Level 3 exam and use a pen to answer the remaining sections. I have heard from various prep providers that pen or pencil is permitted but the CFA candidate checklist is quite explicit in saying either black ink or blue ink to be used.

The only reason this is a concern to me is it looks quite shabby if you try and cram data inside a template question after crossing off wrong answers etc.

Please advise!

I’m gonna go with a pencil for the parts where you have to circle answers so you can change them later. Then in the last 5 minutes, I’ll trace over the circles with pen.