I ended up going with Pro Series after debating between all options about a year ago. I got mine from Hydrilla gear and he layed it out like this at the time. He said lots of guys like blades because of smaller profile and the fact that the spikes sit kind of recessed in housing when poles are upright. Eliminates vibration, noise, etc. if you are making long rough runs. Other than that simply cosmetic for guys who want the top of the line stuff over pro series. Eliminated that one for me. Pro series and blades have faster, stronger pump and I think a couple features like the phone app for androids. I liked the idea of longer warranty too coupled with added features. But to your point, SS is going to get the job done. Consideration for me also was resale since you can move Pro series real quick if need to…SS seem to be little hard to sell used for decent price. And youll never regret buying any of them for tons of reasons. I use my almost every time I go and I know of two tournaments I would not have done well in without them last year.