6 months - almost that timehere, too. I got some practice-for-pay last week on a boat in the marina, so that was a Good Thing. His was even harder than mine to do - varnish worn to bare old wood on most pieces. Some Oxalic acid for the bare wood, some 100-grit for the still-in-place varnish, a lot of elbow grease, and several curses for the swarming Love Bugs (which find wet varnish to be an irrestistable stimulant on which to do their "thing", apparently...).
Katie's brightwork was done differently - all taken back down to bare wood, 3 coats of clear epoxy (sanded after the last coat had dried), and then the varnish. They still look great, but I plan to stay ahead of the game and give her a winter coat. What woman can resist a free winter coat?