PsicoTSI is a tool really useful in the hattrick game to get information about player’s subskill.

The PsicoTSI Project consists of predicting TSI using the player’s skills; and back, predicting skills using TSI.

If you are using chrome (as am I), here there is a link to install psicoTSI

http://userscripts.org/scripts/show/90921

After that you will be able to use it with Chrome browser.