So check'em out , but they're mostly 5 or 6 strings , so get familiar with those 3 string sweeps first so that you get used to the sweep picking motion and focus on more difficult fretting hand stuff.
BTW , 3 strings sweeps are parts of bigger extended arpeggios on 6 strings , or get it the other way , 6 strings sweeps are extended 3 string sweeps ... You'll notice that from their shapes.