Here is a full review of my Kissaki morha zukuri on the SBG (Sword Buyers Guide) forum http://forum.sword-buyers-guide.com/viewtopic.php?f=6&t=124
Here is a little historical info for those who might be curious but not enough to follow the link to the review.Historical overview
Kissaki-moroha-zukuri seems to be a difficult style to find good information about. Much is speculation, educated and otherwise. It has been called the Grandfather of the katana, being an evolutionary step between Ken and tachi. It seems though this may not be right. More likely Kissaki-moroha-zukuri was a branch off from the evolution. One that was found too difficult to mass produce. What made it difficult is the distinctive second edge. To temper properly took more skill from the smith, and a lot more time and attention in the crafting.
The Kogarasu Maru "Little Crow" is the most famous of the known Kogarasu Zukuri blades and currently in the Japanese Imperial Collection. The tang of the Kogarasu Maru is not signed but the blade is believed to have been made during the either the early Heian period (794 to 1185 AD) or late Nara period (710 to 794 AD), by the famous Japanese swordsmith Amakuni, who is said to have created the first curved Japanese sword and is believed to have lived during this period. Two other Kogarasu Zukuri blades exist from this era, but many other blades of this type have been created throughout Japanese history.
There are a few of these Kissaki-moroha-zukuri surviving and they are shrouded in mystery, speculation, confusion, misinformation, and curiosity.
The reason for the thoughts of Kissaki-moroha-zukuri being considered the grandfather to the katana may be due to the Kogarasu Maru and its accredited smith Amakuni. With Amakuni being sited as the first smith to create a curved Japanese sword and also the creator of the Kogarasu Maru puts this Kissaki-moroha-zukuri in the evolutionary path of swordsmithing to the eventual Katana. However there may be some leaps and speculation in this train of thought. We may never fully know how the Kissaki-moroha-zukuri fit in the evolution.
I am currently customizing this sword. I have made a new hexagon tsuba out of 10 oz silver coin. I have carved a new tuska and have the ray skin to wrap it, I just need the ito and to make silver Fuchi-Kashira and habaki to replace the stock ones. I have two silver bars I plan to place under the ito wrap. I am also planning to customize the saya by replacing the rattan with 550 cord.