Try it and see. I have two nock points tied on my longbow, one brass one on my selfbow. I shoot split finger, and can't tell any difference so far.

As a side note, I have heard several folks talk about brass nocksets tearing up their glove. I don't recall that ever happening to me--my guess is your nocking pliers aren't doing the job right. 'Course there's nothing wrong with a tied on nock, except it can be harder to adjust.

Chad