Your weight will change your Vref. It won't change the rate at which you decellerate (just as using thrust reverse won't change your decelleration rate if the autobrake is on), but it will change how much you need to decellerate.

Just to make the point here, if the ROD provided by the reversers is greater than that of the Auto brakes [if they were at a low setting presumably], then you can slow down faster than the selected rate programmed into the auto brakes.Just saying,Rónán O Cadhain, Capt.

As I cannot always guarantee having the plane down on the runway at an exact location, I use autobrake according to runway length and conditions (though that has not so much effect in FSX as in real life I guess). 3 - max for higher weights and shorter runways, 2 for most situations and 1 for long runways when I need to go to the very end turnoff...I tend to switch off autobrake by applying brake pressure below 60 knots anyway, so I can usually make one of the turn offs... the NGX stops well enough not to need the whole runway on all but the shorter runways, as long as it is not too heavy anyway...I am sure it is an experience thing... other than that cool technostuff in the A380...Andrew

Whoa there, Max auto brakes or setting 3? You're going to be burning through the rubber at settings like those, try 1 or 2, they'd be much more appropriate and realistic for you.Rónán O Cadhain.

Just to make the point here, if the ROD provided by the reversers is greater than that of the Auto brakes [if they were at a low setting presumably], then you can slow down faster than the selected rate programmed into the auto brakes.Just saying,Rónán O Cadhain, Capt..

Very true, I stand corrected.