I will be testing the Swarovski ELs tomorrow. Spending £1300 over the Hawkes will only give a minor improvement? I have never looked through any A class binoculars, so I assumed I would be bowled over by the view! If it really is only a minor improvement, maybe I will come home with an ATX scope?
Look forward to testing the optics tomorrow!
I've not owned the Hawkes, so I don't really know. But I have owned Zen-Ray ED3, Zen-Ray ED4, Vortex Viper HD, Leupold Mojave BX-3, and Leupold McKinley HD BX-4, all of which I believe are similar in price and quality to the Hawkes. I have also owned mid-range models such as the Nikon EII, Vortex Razor HD, Kowa Genesis, Meopta Meopro HD, and others. And I have owned true alphas such as the (original) Swaro EL, Zeiss Victory T*FL (7x42 and 8x32), and a Leica Ultravid BR.
You may certainly see a difference; 5% was an arbitrary number but for the most part a lot of those $400 wonder-bins, such as the Hawkes and Zen-Ray, produce some really bright, color neutral images with minimal CA and good sharpness.
The alphas will produce a better image - there's very little doubt about this, but the improvement will likely not be huge. I've never, personally, been 'wowed' by an alpha, as at the price you pay you're expecting them to be the best - and they are, but they are not (in my mind) 2-10x better than the competition. The binos that have truly 'wowed' me are those mid-range models, such as the Kowa Genesis, due to their alpha-like quality at half the price (or less, if you find good deals).
As I said, I find little reason to use a scope 90-95% of the time; I walk several miles on my surveys and the bits and pieces I do from the vehicle are often close enough that I can at least get an ID from my camera, if not my 10x bins.
Only you can decide whether you'd have the 'best of the best' bins or a good quality scope, but I know if I could do it over I'd not have purchased the scope I've got now and would've probably gotten a better bridge camera (my 8x32 T*FLs are already as good as the best, to my eyes).
Justin