IMHO Never too early if you can gather the braids and have a way to hand in
[You must be logged in to view images. Log in or Register.].
The hand in xp is really good too. The loot seems poorer than it should be.
I levelled a lot on my SK at a roughly similar level while farming braids. Compared to the loot you'd get on goblins / kobolds with ore / fine steel you'll probably make such fewer pp that you could have bought an MQ if you prefered *.
*this experience is before the nerf to rebuy costs of strings, so may not actually be true any more.