I decided to go smaller with an 8x32 in a Zeiss Conquest HD 8x32. None of the roofs I have tried, including the alpha's that cost $2.5K approach the optics of my Habicht's in brightness or 3D, so I see no reason for an alpha roof. I may try the Zeiss SLF when they come out for the size and weight. I really like Zeiss roof prisms. They are one of the sharpest on-axis binoculars I have seen. That is why I like the Conquest HD 8x32. I bought a Sightron Blue Sky 8x32 for $100 that there has been so many long threads on, and at first I liked it. It had good build quality, and it seemed to have good optics for the price. I had been using a Zeiss Terra 8x25 compact when I ride my bike down the Poudre River Trail and I see many Great Blue Herons and Bald and Golden Eagles. I really enjoyed the view through the Terra's. I was amazed how sharp and clear they were for a compact, and I picked them up for $250 NIB on eBay. The last time I went down the trail, I took my Sighton's because I figured they would be better than the Terra because of the bigger 32 mm aperture, but they weren't. The Eagles and the Heron's were not nearly as clear and sharp as through the Zeiss, and I didn't enjoy the view nearly as much. The birds were not as much alive or real as they were through the Zeiss. When I watched the Heron with the Terra's I could see his dinosaur like eyes as he stood on a log peering around for fish underwater and the Bald Eagles were absolutely stunning sitting on a tree. For $150 more, the Terra's gave me a much more enjoyable view of the birds I was observing, and so I returned the Sightron's. I guess that is why we buy better binoculars because you get a more enjoyable view of the bird. It surprised me how good the Terra's are for an 8x25 compact. I really think the new SFL 8x40 will be a great binocular, but I don't know if it will be $1K better than the Conquest HD 8x32 in the daytime. It will have an advantage in low light, but in the daytime I don't think so outside of eye placement, and the 8x32 is already pretty good.