I have read a lot of posts about Fiskars so I bought the X25. I have sharpened it numerous times and still don't know what i'm doing wrong. Anybody have any technique videos or anything so I can resolve my problem. I have an 8lb maul but would prefer to use the lighter tool. Even with the 8lb maul I don't think the head shape is right and probably should buy a file or grinder to cut it down.