I will let google the default captcha.
Ooh that's a great option. However, will you store a cookie so that your site remembers which captcha that I prefer? I would hate to have to switch to your captcha every time I claim If not, I understand, but I just hate Google reCaptcha because of it's difficulty settings after you've used it more than 50x per day. It gets ridiculous and counterproductive. Especially when they ask "Click on the image with the mountains under there are no more left." Fucking hell.