Well the information is here, it just gets buried under piles of other 'stuff'. I know when I first came here I probably made a ton of new threads about napping/early morning WILDing...and I know I've seen tons of threads about it since then. Basically napping in the morning is so effective because it's an extension of your REM cycle from the night before. It is most effective when you wake up earlier than usual, set your alarm to get up early...and then stay up for an hour, maybe longer. But you want to go back to sleep, or take the nap within 4 hours of waking up. After 4 hours, you are less likely to enter into REM right away when you nap, and more likely to have longer NREM periods, just like it is when going to sleep at night. That's not to say that you can't take an evening nap and get lucid, but it will be a lot harder and probably take longer than a morning nap.

As far as specific WILDing technique, I won't be of much help...because I used to just enter into WILDs naturally when I would nap. I'd wake up around 8am, and then take a nap at 11am. I would just lay down as if taking a normal nap, and usually I would either become conscious during the vibrational state or once I entered a dream and as already lucid. I think it simply had to do with being at such a light sleep stage, that you are just much more aware and more likely to notice when your body enters SP or when you find yourself in a dream. In fact, I never purposefully tried to WILD...because I always found that to be counterproductive. I would become too anxious or excited because I would be thinking about lucid dreaming, and I would never reach the dream state. But when I allow myself to just forget about it and take a nap, it would always work out. So just see what works for you, everyone is going to be different.