eiffel tower tips ,, are just narrow tips,, but I think it might be up to interpretation,, its a very old term,,so may not be valid anymore,, back in the day there was long discussion on the leatherwall with Dean,, Jim and Tim,, about the advantages or disadvantages,, some were dead against it,, said they were not durable and would not hold up,,etc etc etc,,not good for hunting etc,,
I had a bow I was working on a the time,, one of my dogs was chasing chicken and I threw the bow at him,, the eiffel tower tip stuck in the dirt with no will effect,, I thoght they were pretty tough,,,