This is the progress so far. The sandbags are working great. Yes I drilled the holes and ran the string through them. My engineer/catamaran builder buddy liked that idea alot. Yes the first thing i did was to measure that window. There will be plenty of room to get it through. My strips come on Monday, and by the way the end form is just sitting there as Norm would say, "for photographic clarity." Thanks for everyones help. Elliott