Tartine with malted wholegrain bread flour?

Tartine with malted wholegrain bread flour?

Hi all. Bought a lovely bag of malted flour (http://bakerybits.co.uk/redbournbury-organic-malted-wholegrain-flour.html) at the weekend and wondered if anyone has tried to make a Tartine or Forkish-style sourdough with a similar type of flour. 

Is it worth having a go? I’m not sure about the protein level of the flour and am slightly worried I’ll get my hydration levels completely wrong…

Source: Fresh Loaf