I wish I could visit Yohei this trip. I have a koi coming out of their mudponds this week (I hope). But Yohei is a 5 hour drive one way from Niigata so not planning to go this time.
This is my first trip to Japan where buying koi is not a top priority - which is one reason I am going later in the season than most. My plans revolve mainly around attending ZNA All Japan Show in Ojiya Nov.9-11 and some koi history research including some time at the Nishikigoi museum. Also plan to visit some of the nearby koi breeders in Niigata and a day or two in Isawa.