When I take practice tests, I'm solidly scoring 167-169 which I'm happy with (timed, quiet room, whole nine yards). But I've taken the LSAT twice now and scored a 155 both times.

I'm decently comfortable with my school list, but I'd love to be a bit more confident in my application, have a chance at more money, and maybe be able to add a few more schools.
Thoughts on taking the LSAT a third time (obviously, with serious effort to curtail my performance anxiety)? I figure, it could either open up a lot more doors if I do well, but if I do the same (or, possibly, worse) then there goes my shot at law school...
Edited so HBK can get off my back