Hot tubbing, the practice of experts giving evidence concurrently, is assisting the courts, saving time and reducing costs, according to a poll of 154 experts by the Expert Witness Institute. While only 15% of the experts surveyed had been involved in hot-tubbing, a Jackson reform still in its early stages, those who had gone through the process were positive about it. Some of the experts reported that hot-tubbing is also being used in mediations and early neutral evaluations. One-fifth of respondents also report a growing number of court orders for single joint experts, a shift approved by 37% of experts.