In 1987 I owned the same two Zeiss/Jena binoculars and came to the same conclusions about their optics. I sold the Nobilem "Super" and have lived to regret it. What's special about the "super" is the design extravagance, the huge prisms and triplet objectives. I also think it's preferable to the Octarem as an astronomical binocular because of the wider field and reduced vignetting near the field edge. If I were you I wouldn't break up the set.