There are so many GREAT contributors to this forum.  A boat surveyor told me years ago to temper my desires to make changes / improvements besides cleaning, cosmetics, safety and operationally critical items during the first 12 - 18 months of ownership.  These boats have been designed and built with loads of experience by the Catalina team and feed back from Catalina owners of all size boats.  "Pente" is my fifth Catalina and I have learned with every boat.  Last week I did my first ever on this boat: oil & filter change, change of both fuel filters and impeller.  Saved $300 - $400 vs having marina mechanic do it.  Areas that I don't have deep skill set (battery electronics) or want to risk my health with (swapping out old 100# batteries), let the marina mechanics handle.  Post both your successes and your failures - we all learn from these.  Don't be surprised to get a detailed VERY personal e mail from experienced other C36 owners and regular contributors.   Welcome and enjoy.