Question about hacks.

Hi guys i have one question about punkbuster servers and being banned. If i play on a no pb servers and i use hack i know i cannot be banned ok.....but if join a server with pb, with same account i used hacks before but this time i didnt use them on the pb server.....the game knows that i hacked and bann me or i can play normally? becausee i was thinking to use hack just to level fast on no pb server and then going to play normal on pb servers.....let me know please and tnx in advance!