 Today the Hōki-ryū tradition is today in its 12th or 13th generation.Using "Iso-no-nami" as a base, Hisayasu and later generations of the Katayama and Hoshino families developed and established over seventy sword forms although many of these have been lost in most groups practicing Hōki-ryū today.Presently, fifteen basic forms form the basis of nearly all Hōki-ryū groups, with different groups having varying numbers of the remaining kata surviving .