Brake application

See it often, generally what I look for is that they start off together and see how they progress as the efforts increase. if one increases much quicker than the other then I normally keep going until a brake locks and then look at the percentage difference for a guide. I then do the brake test again a couple of times to ensure the brakes have warmed up. If I still see a brake lagging but is within 50% of its highest and lowest readings I'll advise it, however, the criteria is different from steered axles to none steered axles, so read the manual before making a fail decison. You also must ensure that the maximum imbalance at maximum efforts is no more than 30%. 

No just on application and realese

With stuff like this I use the very scientific method of passing anything that doesn’t make me immediate go ‘bloody hell that’s not right’

that's only at lockout I was meaning at max application before lockout