Best strategies for an unbalanced count ...

Hello , I 'm new here in the forum and I live in Brazil ( I think I 'm the only person interested in BJ in this place ) would like to know about any strategy or all possible (if you can combine them ) to an unbalanced count, I use UBZ 2, I am new to blackjack and was days and more days in search of the counting system better for 6 decks , if one is best for this amount of deck please share . I do not see difficulties in having many counts in my mind and I do not see problem to reckon with absurd numbers ( any account of this good ) , so I would ask for some help on the best systems for an unbalanced , or if there is a balanced or unbalanced better than UBZ 2 in 6-8 decks please tell me and tell me also your best systems

Thank you for you attention and I'm sorry for my english