the whole nose is welded hardox. the original plan was to have a removeable plate that could be bolted on and sharpened or fixed and put back on.. realised its more robust to have it all solid at the tip and when its blunt to just weld the tip up with hard facing rods and sharpen it again. Both turbulences tips were hardox plates welded to the box section with bits covering the ends- reinforcing it, and at the same time not allowing things to get under the side of the flipper front.. keep the welds as beefy as possible and dont grind them down underneath, but keep the front as smooth as possible.