Ultimately, if you ever feel your motivation for windsurfing waning or that your progression has halted, changing things up will give you that hit of adrenaline you got when you first tried windsurfing or got planing for the first time. WARNING, this usually rubs off on others too and before you know it you could have inspired those around you to try something new with their windsurfing too.
Go on… SPICE IT UP!