Yes, that happens sometimes. I think your strategy can work ( why not ? it makes sense ). Personally, i have my own risky technique. I let the dream fade, usually by closing my dream eyes, and then i try to wait for the next dream scene ( or i create one by getting out of bed in my mind ) and to my surprise it's like the dream gets better definition with each «reincarnation» or reentry, but it's not uncommon to lose lucidity too