I asked a similar question to my LFS and was told basically this: It's always better to wait the cycle, but some coral aren't as sensitive and can be fine (even if not fully all the way happy) in these conditions. You're basically "cheating" the process with a calculated risk, and the tank will cycle eventually anyways. I'd suggest a starter bacteria or established bio-media to seed it anyways.
My situation was a little different because I needed to get my coral out of my display in a hurry. Algaebarn has a combo that's Fritz turbostart, and their own cycle product that worked really well for me. Meets the advertised "cycled" in 5 days claim. Cycled in quotes because its bare minimum cycling.