This is the inherent problem with the higher power LPVOs, and I think depending on your use case there are varying degrees of tolerance towards the tight eyebox at the upper end. 1x requires a small objective, and a small objective limits the exit pupil at higher powers. I don't think that can be out-engineered with traditional lens grinding. If the 1-20x optic ever comes about it will be digital imaging. There are enough people praising the Vortex Gen III 1-10 that I think a lot of shooters don't mind a 2.4mm exit pupil at 10x, and with it being FFP you can still run in the middle. This paradox is why I don't think a 1-8 or 1-10 SFP scope makes any sense. I like 10x a lot when shooting past 100 yards so I opted for a Burris XTR3i 3.3-18x50 on my SPR build and gladly put up with a 30oz scope to get a great experience at 10-12x magnification. I still hold the opinion that 1-6 and 1-4 SFP is where LPVOs shine but the market has told me to pound sand.