Replying to Megabits per second

so, looking into upgrades from my old cam because it doesnt have a mic jack (a6000) and well im used to shooting 1080 60 at 50mbps... a lot of cameras in my price bracket are only 28mbps or less... i know the gh3 isbetter but im not sure i want to step down to a four thirds sensor since i do a bunch of paid photography work. so would 28mbps vs 50 or higher really be noticable for skiing? or should i keep the a6000 for pics and buy some type of camcorder that does it better(no idea what things are in the camcorder realm of thing)