Alright.
I have this up on malicious website; it works OK but the bots still get through about 4 a day. I think 1-2 of the custom images I used are too easy to decipher because of their color and contrast to the image verification letters.
No real way to know (yet) which images their successfully registering on
I *think* these images are okay.
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goodverification.JPG [ 98.08 KiB | Viewed 1945 times ]
I think these are too easy and the bots OCR software is breaking them
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badverification.JPG [ 26.22 KiB | Viewed 1960 times ]