I probably have tried 50 isolation devices over the last 30 years. I have definitely found that spring or soft isolation is no good. I have also found that some hard isolation also hurts. It is quite clear also that some isolation works on some devices and not on others.
The three best isolation devices I have found and on a scale of 1-10 with 10 best are: Neuance, 5, Acapella 7, and Halcyonics 10. As always, YMMV. My overall conclusion is that cheap and common solutions rest on poor understanding of what is going on and that the theory of what must be done is quite poor.
The three best isolation devices I have found and on a scale of 1-10 with 10 best are: Neuance, 5, Acapella 7, and Halcyonics 10. As always, YMMV. My overall conclusion is that cheap and common solutions rest on poor understanding of what is going on and that the theory of what must be done is quite poor.