I have advice. First off, if psi's real then I think it's clearly an intelligent agent-like or agent-caused process. In general you'd be stupid to mess around with agents with unknown preferences. That's why witchcraft was considered serious business: messing with demons is very much like building mini uFAIs. Just say no. So I don't recommend messing around with psi, especially if you haven't seriously considered what the implications of the existence of agent-like psi would be. This is why I like the Catholics: they take things seriously, it's not fun and games. "Thou shalt not tempt the Lord thy God." If you do experiment, pre-commit not to tell anyone about at least some predetermined subset of the results. Various parapsychology experiments indicate that psi effects can be retrocausal, so experimental results can be determined by whether or not you would in the future talk about them. If psi's capricious then pre-commiting not to blab increases likelihood of significant effects.