I'm a newcomer to digital u/w and have bought a ds 50/cannon g-2 setup. An aiming light definitely helps, but I do not like the attachment that Ikelite has for it's mini c light. The light is way too big and cumbersome for an aiming light. The dilemma is that most or all of the really small uw lights do not use a flip type switch. I'm going to experiment with attaching a small (aa batt size) aiming light to the strobe. Let me know if you find a solution that works for you.