The X2.6 has a switch to turn the modchip off, with the DuoX2 you have an option at startup to decide wether to have it on or off. Think it is like:
Power Button: Start with chip
Eject Button: Start without chip
not sure about that though but I am sure it can be turned off.
The Xecuter 2.6lite is of course better as the DuoX2 is considered a cheapmod.
To flash the DouX2 read these threads:
http://forums.xbox-scene.com/index.php?showtopic=422310
http://forums.xbox-scene.com/index.php?showtopic=382632
http://forums.xbox-scene.com/index.p...pic=416069&hl=
http://forums.xbox-scene.com/index.p...pic=407021&hl=
About the Xecuter 2.6lite I am sure you will get all the info you need at teamxecuters homepage or from quall...
