Experimenting with the planning process is part of the planning process, I'd have to say. This is part of the way one finds the planning process that works for said person. Without experimenting, trying new ideas, discarding ones that don't work, one can't know how to make processes better.
Of course, the flip side to that is always be experimenting in ways that lose the parts that work. Throwing out an entire process for the sake of trying a new one makes little sense to me.
Anyway, this week's experimenting involves scheduling all of my weekly review tasks onto specific days, possibly into specific times. I'm hoping the scheduling will help increase my completion rate.
Next week's experiment will involve asking three times, "Do I really want to do this task this week? Really really?"