Wow cool dream! See, this is one reason I love DILDs: the setting is already so realistic before you become lucid, so you don't have to craft it. Some people say that WILDs are more vivid for them, but that's not the case with me.

Anyway, concerning RCs.. they can be tricky little shits. I used to use the finger through the palm, and it worked a couple times. Then I started using this RC whenever I saw a tornado, and it would fail me. I missed the chance for lucidity in many tornado dreams for this fact. I think it would help to have a couple RCs ready, just in case. Or better yet, the next time you noseplug and it works, remind yourself in the dream, that your subconscious will try to trick you out of it later.

Finally, a touch of bravery: Of course you don't want to risk flying off a cliff if you're not sure if you're lucid, but no harm in embarrassing yourself in front of people. But you did try it anyway so that's good. In a case where a dream is so vivid that you feel the need to keep checking, I think the reminder I mentioned before is important. But maybe include a couple extra crazy or extravagant RCs so that you won't doubt them later on if they work. Or keep testing your environment, talk to DCs etc.

That's all I got. Hopefully it won't happen too often, that you question the validity of a RC later on in the dream, so you can enjoy the lucidity PLUS the vividness and do some cool stuff.