If I understand correctly (and someone please correct me if I'm wrong) the term 'free play' describes the distance the clutch pedal travels from where it rests at it's top of travel until noticeable resistance is felt as the pedal is pushed down. This free play ensures the clutch is fully engaged as much as it can and in turn avoids slipping.
The good news is as long as the instructions in step 3 are followed, free play is inherently adjusted to it's correct setting.
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View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)