Hm, when in doubt I always look at what family has produced. Her best half-siblings are by Rainbow Quest, Highland Bandit, and A.P. Indy.
RQ - Crystal Rainbow or National Post
HB - Robin Hood
AP - Golden Text or Aptitude
Golden Text was a sprinter so if you wanted to go in that direction, I'd go with him. To be fair, though, all of those boys won at least one stakes at < 8f, so you could gain a bit of flexibility distance-wise if you went with one of the others, as GT only did well in sprints.