Most folks, when practicing scales, start playing on beat 1 and play through the scale…
And while that makes sense academically, it often doesn’t make sense musically 🙁
There are 2 reasons: 1) you don’t want to start your licks on beat 1, so maybe not starting your scales on beat 1 will help you get used to that.
And 2) if you’re playing a scale, like a mode, that might lead your ear to a note other than the root, not having the root land on beat 1 is rather – unsettling… or unsatisfying at the least.
Watch the video… easier to show that tell 🙂