Update: New version 2.0.2 released since 2.0.1 wasn't that accurate. This should be better! 
Hello
Well, I've finally decided to release this program, I'm a C++ programmer and I know I have no rep here so if you don't trust me then don't download it, I assure there's no viruses in it and if mods want to check it out go ahead.
This will work with any version of Audition (SEA, American, etc) because it does not interact with the game itself.
It didn't take me long to write it, at first I wrote it in VB but VB wasn't as fast and accurate as C++ so this is way better.
This does not force perfects, and you still have to do the arrows, but it can chain off your own perfects, most of the time (I've gotten as high as x12)
It works better if you have windowed mode for Audition, because that way you can change the BPM without exiting Audition.
It's fairly simple to use, and here are some instructions if you are using full screen Audition:
If you have a fast computer, you can press F11 to start High Precision Mode, which will make your chains better!
1.) Load up Perfection 2.0, you should see a black window with white text.
2.) Press F10, then enter the BPM (beats per minute) of the song you are going to play, for example 130, then hit enter.
3.) Start Audition, join a room and request the song, or just make a room of your own.
4.) During the game, try to land a perfect normally, then press F9!
The hack should start to chain with mostly perfects and some greats.
And beware, Audition has already put up some kind of protection to this kind of hack, because earlier I was using it and, to my surprise, I got detected even though I have never released this before.