If you see that MBP11,1 or 11,2 works better, than go ahead and use that, There's no advantages that I know of other than the fact E7440's don't have a built in media player as an MBA.
Rehab man's voodoops2 is for Synaptics Touchpad. The version used for the E7440 is a derivative of Rehabman's voodoops2 for Alps touchpad. That is why his latest versions only shows as a regular mouse and not as a touchpad. You can try Ahmad's version. He has fixed the so call "twitchiness", but it seems to cause KP for me with his newer versions. I haven't test his latest version yet though.