Congratulations, sure you will enjoy the boat. My advice would be to replace the downhaul, tack line and spinnaker halyards with decent rope as well as the lines running from the tip of the kite pole to the bows.... Also make sure the boats have a Harken spinnaker halyard cleat fitted.
This will tidy up the few problems myself and others have found with the current set up. Apart from these little things, it is a fantastic and fast boat.
Also check out here for some usefull tuning tips
Capricorn Tuning Guide
http://www.ahpc.com.au/pdf/Capricorn%20Tuning%20Guide.pdfWing Mast Tuning Guide
http://www.ahpc.com.au/pdf/Sailing%20With%20Wing%20Mast%20Rig.pdf 
