To cryo or not to cryo

It will be difficult if not impossible to objectively measure the sonic effectiveness of cryoimmersion treatments due to a lack of an agreed upon end point. The target shooters mentioned above could measure their guns' accuracy with and without cryo treatment. Everyone can agree (or at least SHOULD be able to agree...) on whether a paper target has been hit accurately as long as clear standards for interpreting the hole patterns are used. Not so with audio. Audiophile listening is quite subjective and involves more variables which are less well defined. Rja's solution is probably the most reasonable and easiest compromise.