I would estimate that the LDs in the void last from 1-5 minutes each, but they usually don't end with me waking up. Almost always I eventually drop into a pre-made dream set - just like a Hollywood movie set. I see it from above and land in (am moved into) the set. Then a dream starts and I use all the techniques I can to stay in them as long as possible. Sometime I then go back into the void and some times I wake up. Total lucid time is anywhere from 5-20 minutes. Last week I went into the void, over and over again, without waking up - I estimate total time in void was 10+ min.

I feel so good in these experiences, now that the fear is gone, that I want them to last as long as possible.