Hi, Check to make sure you have the Hush properly set and the speaker simulator set. I do like my Rocktron Voodu Valve. I don't have it connected in a way to upload my presets and the unit is set in my studio desk.
Someday I will publish the sysex files of my favorite presets for other Voodu Valve users.
I have recently purchased a Line6 Flextone III Plus. This is being used for both my live gigs and studio recordings. I have it hooked up to share my presets. I will be posting these somewhere soon.