How did I miss this thread? :O
I have both the book and the audio tapes of Win Wenger that is told to increase IQ etc. And just two weeks later I got Nobel price nominated
Ok obviously not... Although his Image streaming technique was my answer for meditation, noticing all the thoughts until I reach the point where I think: "I have been thinking for so long, so I don't even want to think anything" = Meditative state. lol

And it also increases my dream recall at least that's what Win Wenger say it will do, but look in my Dream Journal and decide for yourself.

"The reason to why this works is because when you do this you are exercising your synesthetic muscle and the multi-sensory description build up the neuro connections between the senses and widens the neurological contact.
This exercise gives stronger and clearer looking mental images which in turn improves your memory."

...Which makes it easier to recall your dreams -> more awareness -> easier to become lucid.

I hope that answers your question