Currently the default output directory for Cactus output is ".", something that is hardly ever used by anybody. We should strive to have parameter defaults that work in most circumstances and that are used by most people. "." is safe, but not at all the most wanted choice. "$parfile" is another sensible choice, should be as safe as "." and is used by more users (>0) as their default. Thus, I propose to test to change the default. Before getting into this (unknown) amount of work, let me use this ticket to ask for objections first.