When is a good time to watch the videos?

My only hesitation is that I’m not sure if it’s such a good idea to mix and match 3rd party material. The appeal of Secret Sauce for example is that it comes in a format that is VERY similar to the Schweser notes, so it just feels like you are reading notes of your notes, whereas if you read Schweser notes and then read 11th hour, it’s going to feel like new material that you need to re-digest. Same for the videos, the Elan videos use examples that are taken directly from their notes, so when you watch the videos after having read the notes, the examples are familiar and vice versa.

Just thinking aloud here.

Yes obviously that would happen. Choose the provider with whom you are more comfortable - in terms of price, quality, and everything.