I basically followed this, but wasn't so fussy about the fine sanding:http://www.thebeachcats.com/OnTheWire/h ... /tip29.htm
Be careful not to build the head up too much or you might have interference problems with the castings. (I think EPO heads are wider than plastic to begin with.) Also, I topcoat with rattle-can epoxy appliance paint for protection from the sun. Otherwise, if left exposed for too long, the epoxy will start deteriorating. The rattle-can is a cheap, easy way to touch up when needed as well. I have rudder covers now, so mine have been looking great for a very long time!