Thanks! Those concerns are very important to me as well. Both are obtained with the SW 8x25 as well imo. Bigger DOF with the 7x21 makes the 7x21 even easier I can imagine (less focusing) as well as the bigger FOV (although the AFOV is a bit smaller).Regarding your seven power are not enough concerns, I once tried 7x42 Ultravids against my 8x42 Ultravids for two weeks. A kind forum member sent his binocs out to me to try. Anyway, the difference in power was so subtle, that I hardly noticed it. My two biggest concerns in binoculars are, 1) image quality, and 2) ease of view. The 7x21 Curios pass those two test in spades. I’m a big Curio fan.