How do you usually practice your scales?

If you’re rough on the edges for a few, concentrate on those.  I just started working on the major scales from the top of the horn down.  Doing the key of E this week.  I can play them all fine in one octave, but the extreme ends (high and low) of the range are not as clean.

So I’m doing ‘microscales’ – five notes of the scale up and down starting at high E and going down to the bottom of the horn, all in the key of E.

Practicing too much material is not generally a good, if you spend that time in a more focused way (on less material), you’ll sound better on the stuff you do play.