I have the Covermate II (from Doc) and found that after it was installed it is actually several inches higher than what the picture shows. I have a Optima (7'5" square)and to adjust it correctly it is about twice as high as what is pictured when opened. I do not see anything else that will work as easily as the covermate II but thought I would comment. I think being twice as high as the picture doesn't matter to much becasue even if it was lower when seated you could not see over it anyway.