Hi, welcome to Street Fighter Wiki! Thanks for your edit to the Talk:M. Bison page.
It was mentioned earlier that Sean being taught by his gramp his fighting style. Unlike Laura, Sean only learn a bit & instead uses more of Ken style shoto, with a little bit of his family's fighting style, such as his tackle, somewhere in some info, but i can't find it where. -- ScottKazama (Talk) 08:00, October 19, 2015
Ask the fans around the fighting game forum or perhaps Capcom who knows it more. I assume he learn his gramps fighting style a bit is official. Is in his blood + are from his sister's profile. -- ScottKazama (Talk) 08:00, October 19, 2015