A guy I know is doing the newcomers and supertwins race this year. He's planning on taking 3 sets of tyres over the 2 weeks practice and racing (I think medium compound). Was hoping any of you knowledgeable mechanics/ competitors could give me some advice to pass on. Would the 3 sets of tyres be enough? What's the general consensus on how long front/rear tyres last on the twins?

Thanks in advance.
Mike