Boys (and girls)!

What would be the best way to begin learning HI OPT 2 after employing FULL KO for 2 years? Would you recommend it for shoe games? Because in Europe the most games are being played on 6 and 8 deckers..Would it be a long learning process to burn it into my brain? Which books do you recommend?
The truth is that i started feeling comfortable learning a much harder count. I want improve myself.
Thank you very much, i really really appreciate any respond!

All the best

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