BlackHawk Products Group's Gladius Maximis offers good anti-roll capability. A cross-finger grip on the tail cap keeps the light from rolling and works well when holding the light for the Rogers technique. But what makes the Gladius truly versatile is its end cap. Not only is it the on/off switch, but rotating the cap gives you a low beam, high beam, or a strobe light depending on how far you turn it. You can also lock out the switch so you don't accidentally turn it on. The idea of multiple light output options is appealing for DUI checkpoints, because the low light is excellent for checking IDs, while the high output setting lends itself to use for searches and the strobe helps when approaching a suspect.