Not forgetting that some aircraft have a min RAT speed of 140kt during EEC which is going to extend the LDR...
In EEC do the engines drop from flight idle to ground idle on touchdown? Can't remember...
Peacekeeper..
For a dual eng fail, I wouldn't worry about the runway length. Look at the options and decide quite quickly whats going to fit the bill. Put it this way, say you spend 3 minutes of rattling around the QRH factoring in this and that you aren't going to have enough height to decide which airfield to pick anyway (particularly the ROD at high altitude is massive as you chase the 280kt relight speed). Secondly, performance is only relevant if the speed across the threshold is correct, with a touchdown at the correct point, neither points are a given in the dual eng fail case. Thirdly, you may touchdown with an APU operating (subject to aircraft fit - In some, it is not recommended to attempt a start) and if you have the APU operating with the yellow pump you may just have normal brakes.....