A 1s/5r rotation is really only for mobs that will live through an entire rupture cycle; mostly this is bosses. Also, you generally can't pull off a 1s/5r cycle without the 2 piece T4 bonus; if you have that, great! If not, use the spreadsheet to see what your optimal cycle is; probably gonna be 4s/5r.
For trash mobs and soloing, it's generally a one point SnD, or two point with Cheap Shot, then build cps until 5 or until the mob is near death and hit Eviscerate.