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WBTB is very effective. Without it, LDing becomes increasingly more difficult. However, I wouldn’t say it’s the best method, because on it’s own it’s not that effective. It is best paired with other techniques such as WILD, FILD, MILD, VILD, DEILD, or just about any other technique you can think of. Also, in any case there is no such thing as a ‘best’ or ‘flawless’ technique, because different methods work better for different people. It’s all about finding what works for you.
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I’ve never heard anything about this. It is possible that having a dry mouth could prolong a dream, but I doubt it because it would simply cause immense discomfort. But since I’ve never tried it, I can’t tell you for sure.
As for keeping water in your mouth, it doesn’t sound very safe to me. Your throat relaxes as you fall asleep, so you’d probably end up choking. I doubt you would die, though, unless you have an entire mouthful of water and it all goes into your lungs. You’d most likely just wake up coughing/choking. -
First of all, I’d like to say congratulations. I don’t think I’ve ever heard of anyone achieving their first LD through WILD on their first try. That is a hugely amazing accomplishment.
Everyone is different. Certain techniques work better for certain people. For you, you seem to be good at WILD. Although it is a fairly advanced technique, you managed to do it. You could also try VILD or DEILD. Just make sure to pair it with WBTB, because otherwise you will not be entering a REM sleep.
Also, check out this thread: https://community.ld4all.com/t/senses-initiated-lucid-dream-ssild/36649 . That might work for you.
It’s good to try a combination of techniques as well. For example, MILD while initially falling asleep, then WILD/VILD during a WBTB. Just play around and see what works best for you.