I have tried it before and I lost. I won't try it again. What actually happened was I just saw a tipster thread and based on the previous prediction that the person has suggested which happen to be correct, I just went in when it was obvious I haven't heard about the teams playing before. I lost woefully and since then I won't put my money in such again.
don't get me wrong mate but its funny because this also happen to me, i was watching a tipsters thread here and i seen that he have good winning percentages, i did try one of his tips regarding to soccer where i really don't have any idea he had 3 straight wins from previous tips but shit happen to me because i got in the timing where the tips got loss, hahaha, so after that before i followed any tips i also did some research to know why the tipster gave his opinion about the games.