Check article starting on page 18 of the spring 2011 Hotline here: http://www.w1dm.com/projects/HOTLINE/Hotline.html
Lots of good info.
That was an excellent writeup. One thing I would add having refinished mine the quick and inexpensive way (light sand, then sprayed three light coats of high gloss black appliance epoxy enamel from a rattle can) is don't make the mistake I made by overbuilding the application in the area you see highlighted in diagram #10. I have the older-style castings and with only three light coats of paint I discovered I could barely get the freshly painted rudders back into the castings. And once I did it was difficult to get the rudders to move up and down. Figured they would "break in" after a couple of sails but no go -Reboot!!
In my case I elected to remove the rudders and sand off the top 3" of freshly applied paint (left the top 3" unfinished). Not the perfect solution but after two seasons I was and still am happy results.
'82 Hobie 18 SE with '85 Nationals Prism (White) sails
'73 Laser HID# 3463