adimag,
Like Sarius, I have an Ultimate 60 light. I can answer your switch question by describing it using the word FLAWLESS. As for a general description of my light, I can think of no other word than PERFECT!
In fact, if anybody saw how many times I have customized the light in both the Options and Brightness Menus since I received it on May 9th, that person would have me committed to a loony hospital. I am a serious fanatic about my light, and I am learning how my eyes and brain perceive light from the many brightness levels available. I am also learning how to match an output to a task.
My point is that if as a result of the heavy duty use (abuse?) I am exposing the light to, the switch still works perfectly, then imagine how dependable it will be when used moderately such as in a Basic series light? Both Basic and Ultimate series lights use the same switch, and since the Basic series has no customizable functions, the switch may even outlive the owner!!! Long life to both you and the light, adimag!