I would like to purchase a laser pointer for stargazing but also for daytime pointing at small cryptic things such as butterflies, frogs, birds etc. hidden in trees or in vegetation. I require that others who I am with can see the dot in day light and easily spot the object I am pointing to. As this would be in day light and sunshine, I would like to know whether the jump from 30 to 50 mw would make a difference or if I should go with the cheaper 30 mw. it's not much cheaper but it also comes with some cool heads to screw on and get fun illuminations. both are from O-like. Any recommendations??