I have a Aritsugu A-Type 270mm Gyuto, which comes with an awful factory handle, and handle I bought from Stefan. So naturally, off comes the factory handle. The factory handle came off no problem, and luckily the Stefan handle is twice the weight of the factory one, as the knife was quite blade heavy to start. The spine is very square and sharp, and the choil is rough, so I am also going to take care of those while I have the handles off. The tang is about 1mm too tall for the new handle, so I will take a little off of there as well. I will have some pictures later this week. What kind of epoxy do you guys like to use for wa installations?