PC #6 was NEVER built. Why, you ask? Seems like well known (and accomplished San Diego Sailor) Bob Mann was next in line to have a boat built for him after #5 was completed. When he ordered his boat and GK Jr. told him his boat would be #6, I am told his comment was "NO WAY!! My lucky number is #7. I want 7!!" George, being a friend and wanting to sell a boat, answered, "Ok Bob, yours is #7!". Thus the number 6 was skipped over and no one ever thought to change the hull numbering sequence after 7 was completed!!