As long as you have traction and power to push, it wont matter how tall the blade is, if you have enough snow it will come over the top.
IT comes over the top of my 28" blade just the same as it comes over the ~40" high blade on one of the loaders. Same as it comes over the ~36" high boxes too.
Just keep in mind that the more snow you hold in the plow, the harder it is to push. IF you have plenty of push power in reserve, go for it.
IMO, those rubber flaps dont do a whole lot on the newer style plows that are curved more at the top. But are nice on older style plows like the meyers