[HairOfTheDog]

We don't know about Legolas and Gimli do we? - Tolkien did not really tell us what might cause them to fail. He had already set up Boromir to be the fall guy. They were let off the hook by their creator, apparently. He hints that the rest of them would fail, but didn't feel the need to expand on it.

[ksen]

He hints that the rest of them would fail, but didn't feel the need to expand on it.

Penny1 is reading his letters, maybe she'll know if Tolkien addressed this somewhere in there.

-Kevin

[Overtaxed]

He hints that the rest of them would fail, but didn't feel the need to expand on it.

Expanding on it would just be a repetition of the "failure theme" he took with Boromir. It seems to me that with Legolas and Gimli he chose to do the "individuals-from-peoples-who-don't-trust-each-other-become-fast-friends" theme.