Since this is the internet, there will likely be pro and con responses to any question posed and often from folks with little or no specific experience. Unfortunately, many responses just “parrot“ what they’ve read here, older threads, and other BBs. Also factor in that there is a huge Swarovski fan-base here on Rokslide.
Your previous posts in this thread tend to indicate that you’ve decided a Swarovski EL is the best binocular for hunting eastern Whitetails and are looking for reassurance. They are a solid binocular, but don’t know how you arrived there; and, many (me included) would likely be reaching for something else for the eastern deer woods. Unfortunately, nobody will be able to accurately predict how well the EL will fit your eyes and preferences and it will take some time with them to figure that out. To answer your question directly = the EL has long been associated with rolling ball effect throughout its history; however, the newer SV versions have anecdotally been attributed to generate this effect in a greater number of users. However, I don’t know of any in-depth studies for numbers of people affected or severity of impact. (Just like some people will get seasick to various degrees, but you won’t know until going out on the water). For me personally - I’ve sampled various EL models over the years - on a tripod to slowly pick apart a distant landscape, they are crisp and sharp with no issues; but handheld and scanning for a while makes me feel uneasy. Some others have no issues and absolutely love them.