Is cracksat's full length reading tests useful?

Hi, i found 7 full length reading tests in the cracksat.net.Are they similar to official CB tests?Should i use them?

Some voices say that those texts were taken illegally from the CB, but I’m not sure about that.

I wouldn’t use it, unless I got out of prep material, which is unlikely happen (in my case).

MODERATOR’S NOTE:

One of those voices is mine. That site uses pirated materials, and since this site is not for discussing such illegal materials, the thread is now closed.