I bought my first pair of binos, Minox BL 10x42 BRs, ten years ago. I've been very happy with them, but am now looking to upgrade. I'm struggling, however, to get a sense of how much improvement I'll see in different classes of binos, because I don't have easy access to retailers. Can anyone offer opinions on what would be a comparable bino today, so that I have a reference point? For example, are my binos similar, better, or worse than, say, Zeiss Terra EDs?