I was browsing old youtube videos and came across the techquickie video for laser or optical switches. I decided to do more research and found that they could do some pretty interesting things such as "double actuation" where two functions are performed when the key is at different levels or walk speed variations in games. I was wondering if anyone had more information such as how prevalent support for this type of switch is in common games or if they are even worth looking at. If anyone believes that they are worth looking at it would be appreciated if anyone would be willing to point me in the direction of a decent budget option.