i dont overly care how its done, but MNK needs at least one skill that helps with the conservation of GL3 stacks when theres no targets to hit, the meditation idea of instantly granting 3 stacks with a long cast time does sound good, although in most fights that would make perfect balance obsolete, so i'd probably opt for it being instant and have a long recast time while only giving 1 stack (which would also refresh the duration of greased lightning), that or add a fixed amount of time to the GL buff, similar to how contagion works on summoners.