Assign an extra option to the default annotations button to toggle the new youtube cards
< Opiniones de Youtube Card Annotations Disable
Well, this is more of a hack then a real solution. I've been planning on changing it, since it does fail sometimes and toggling the annotations doesn't show the cards (you'd have to reload the page). Just never got round to doing it. I'm pretty busy atm, so it'll have to wait.
Nice Script!
In fact, it works so good I added it to my TamperTubePlus script (and of course mentioned you), if you want me to remove it, just tell me. And please add a license to the metadata