Lewmar Synchro 50mm
I used the Lewmar 50MM synchro fiddle block w/becket and cam.It has 3 angles to set the cam position. It is not perfect, but it is close enough to allow me to use it when I solo. The line lays across the deck/hatch, I slide the hatch cover all the way closed, so the line dangles to the cockpit. I got it at West Marine, as the had the best price, around $46.00.There are other brands that would have more adjustment, but the cost was 2 to 3 times more. Their part # is 29925039. Here is Lewmars web page with the block:http://en.lewmar.com/products/index.aspx?lang=1&page_id=3&sub1=19&sub2=74&sub3=190&sub4=&sub5=&template_id=6&part_number=29925039