The problem I found is that when I use Audiobus with Cubasis in order to record live music with Loopy HD the midi keyboard and the midi pads for drums sometimes dont repond inmediately, so there is a glitch that is causing the sound to come out later maybe is related to the touch response in cubasis, I only use basic sound like bass and drums, so it is a big of a hassle that I even upgraded my ipad and stull experiencing same issue.
Please help.