When I was actively cultivating OBE I noticed that I would project around two to three days before the full moon- I first assumed it must be related to how the tides affect my brain chemistry, but when I started recording it I realized that it only seemed I was projecting during that time, after a while a different pattern emerged. More of a tendency towards clustering and then droughts. Sure, if I tried hard enough I could force a projection, but after a few years I stopped doing that and nowadays I go with the flow more.