Being picky about it seems like a good idea. I do the same with Japanese; the only thing I don’t fail myself on is pitch accent (Japanese has a high/low pitch thing). Everything else has to be right.
I do catch myself sitting on a card longer than I should at times, though if a session goes long for me it usually means I’m shadowing a lot of sentences out loud. I don’t think I’ve seen specific guidance on how long per card is too long, although if I go longer than around 10 seconds on a card it does start to feel like I’ve lost flow.
Being picky about it seems like a good idea. I do the same with Japanese; the only thing I don’t fail myself on is pitch accent (Japanese has a high/low pitch thing). Everything else has to be right.
I do catch myself sitting on a card longer than I should at times, though if a session goes long for me it usually means I’m shadowing a lot of sentences out loud. I don’t think I’ve seen specific guidance on how long per card is too long, although if I go longer than around 10 seconds on a card it does start to feel like I’ve lost flow.