trying to compare the Green V Blue and Dark blue.
Mind reader. RAF Fitness test has different regimes - Dark Blue, Light Blue and Green.
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Seriously common sense seems to have surfaced. Jock strappers would be wasting their time doing a test every 6 months whereas pie munchers may well need an incentive.
Apparently the 6-monthly testing regime will apply to those that simply pass the test (green). If you exceed the basic requirements in all 3 areas you may have the test period extended to 12 months (light blue) or 18 months (dark blue).
The other group excused the 6 month test would appear to be those that fail.. No colour for them, just conditioned training.
When I could pass the 1.5 mile run from a standing start I could see no virtue in having to do it every 3 months.
In other words, resources directed to where they are needed most.