How about some specifics there Jan? How many years have you been learning Villasin Balintawak? How many months/years did it take for you to be able to tell the difference? a year, 5 years, 10 years? Other than these small differences in the grouping system, how is Villasin Balintawak you are learning different from Balintawak as practiced by the rest? I'm pushing this, because you continue to speak in as vague of generalities as possible. Time to bring some fruit to the table.