VStack, Fxteleport or a third option?

[Funkadelic]

I've got a friend who´has three computer linked. He used to use fxteleport wich has this cool rewire feature so the sound is "wired" from one computer to the main computer without the use of soundcard. BUT, when u open a new project i closes down the instruments on the other computers and loads them again wich takes a long time.
Vstack keeps the instruments loaded when u load a new project BUT it doesn't "wire" the sound so u have to have a soundcard in the other computers and record the sound on your main computer.
Is there another program that has both of the features?