Yes, that's perfect.  It's quick enough not to get in the way, but noticeable enough that I'm not in any doubt as to whether the click worked before.

I think before the problem was that although the screen updated when I clicked 'double bets', the button itself didn't change, and that's where my eye was pointing at the time.  The parts of the screen that did update were small enough that my peripheral vision didn't notice it.

tldr: thanks