Sure. You could try alternating between switching mantras and hanging onto one to see which works better for you. I would agree that strong intention does a lot to attaining lucidity. It seems like when I am able to become lucid, it is preceded by a strong will and motivation throughout the day and while falling asleep. When that intention and will wanes, I have fewer lucids.

Hmm. That has happened to me with some of the lucids I've had. I have confirmed the lucidity with RCs, but a few times I've just suddenly realized I'm in a dream while standing around without anything apparently odd happening. I'm interested by how quickly you seem to be achieving lucidity. Approximately how frequently each day are you aware? Is it hourly or more? And how much time will pass in between your moments of awareness? How do you experience the awareness you've been working on as it is happening?