Early V11's also came with the Titanium switch installed and the rubber switch parts separate in a little baggie.
Sunwayman stopped shipping the titanium switch and only shipped the rubber switch after the first run or so. The titanium switch had problems caused by titanium-on-titanium binding when the titanium button slid against the titanium retaining ring. There were a lot of complaints that the button didn't work smoothly. The titanium switch looked better, but worked worse.
Here on CPF someone manufactured and sold to members a black plastic retaining ring which solved this problem and allowed the button to move smoothly.
Steve Ku of Veleno Designs also sold a limited run of his own design of titanium switches. His design featured unique hardware including a button with trit slot, and his switch was an electronic switch instead of a clicky. It was much superior to the Sunwayman titanium switch cover.
Course all of this happened 4 or 5 years ago. Neither option is available today.