I am really curious why Topre feels so good. Its mechanism is just similar to regular rubber dome with a coil spring, but the spring offers very little force, so I don't think it makes much of a difference. Even though the actuation mechanism is different, but I don't think that will make a difference in the process of pressing down the key. I tried Topre once and I know it feels great, but I just can't understand what magic does Topre do to make it so great.