nothing is wrong with dagger baords, they are just one more thing to think about. They will help you to point a little higher though. The nacra 450 is a relatively new boat, and I have never been on one however, looking at performance catamarans website, it looks like it is a 5.0 that is halfa meter shorter. i can only assume that they share the shame easy to sail characteristicts of the 5.0, somebody else might be able to shed some more light on this specific boat. I was trying to be objective, and in general it seems that new sailor like boats without daggers, you might be different though. Above all, if you thihnk that you will enjoy it, then buy it. That is really the bottom line in catamaran sailing, or any sailing for that matter.