I switched about a year ago, and didn't have too much trouble. I deliberately chose blades with the same rocker as my freestyle blades, to minimize the transition. Technically, I'm on synchro blades - they have the same short tail as a dance blade, but the toe picks are slightly bigger. I can still do freestyle on them if I want. The toe picks are much smaller than my old freestyle blades, though, and that was probably the biggest thing I had to get used to. People kept warning me about taking care not to fall backwards because of the short tail, but, honestly, I never found that to be an issue at all. Adjusting to the lower cut of my dance boots was a much bigger adjustment than the new blades were.