Fourgolds,
Do not assume that all overweight landings will result in melting of the tyre fuse plugs. I have personally landed a A340 at 5tonnes below max TOW some 12 mins after take-off due to a major problem. Remember the brake energy to be dissipated from a V1 stop (given the field length remaining) is a lot higher than that required from a broadly similar (say 30kts faster) landing achieved at the start of the runway - especially if full reverse is available and one is able to modulate the braking to match the distance available. For the doubters out there we touched down at a Vapp of 177 kts, used full reverse on all engines on a 3500m runway and achieved brake temps of 400c!!