BERP
Peter, no apology necessary: I was just kidding anyway.
Ring Gear: thanks for the drawing link. The point you noted re the tip weight attachment being separate from the tip cap is important. The tip cap itself is extremely light. Might be kevlar now (?), but it started out as Al sheet and even that was really light. Point is that from a balance point of view, if the tip ( or tips, more likely ) get smashed on some tree limbs the resultant mass/aero imbalance won't be such as to create a more serious difficulty.