Thurston9's post in Helix Pitch Whammy was marked as the answer
I agree completely with the OP. The quality of the whammy/pitch shifting is my number one complaint.
I haven't seen too many others have issues with it in the forum, and I wonder how much effort would go into improving it. Glad to see a post about it to hopefully draw some attention to it.
I'd really love to sell off my digitech whammy 5 since it's expensive and large. The G-system had a much better intelligent harmony effect that tracked extremely well.
I don't generally complain about the Helix, but this is my one major hang up.