I am guessing that these are fairly popular because of their price and history. So I ordered one. But I have no information on it regarding blade thickness, grind (hollow I hope), and durability. I have visited CFKT and I know that it can't take 240lbs of lateral force or spend time in water and gas, but I don't plan on doing those things. Specifically has anyone ever experienced problems with the blade or gaurd coming loose after years of use? Pommel falling off? Also what is under the stacked leather rings to give the oval shape? Wood?