How to get high bid in Kolotibablo?

If you work for Kolotibablo then you probably know about high bid captchas. This captchas are appearing only few times in 1000 entries. They look like this:

My question for my readers: do you know how to get more of high bid captchas? NOT ONLY 1 CAPTCHA! How to get good flow of this captchas? How to get high bid all the time?

Some people are thinking you need official soft to get high bid captchas, but official soft is NOT necessary, browser work is also good.

So how to get more of this high bid captchas? If somebody knows please write here, thanks.