I'm looking to replace my 743 with one that has enough Aux flow to efficiently run a 60" brush hog. I found an S160 for sale, I have not seen it yet. The owner says it has Hi flow. I checked the specs on http://www.bobcat.com/historical_specs/skid_steer/s160_2003 It lists 2 S160's ( why does it list 2?). one says: Aux std flow 16.9 Hi flow 25.5 gpm. The other one says: Aux flow std NA Aux hi flow 27gpm. So do some machines have hi flow and no std flow? Can you have too much flow for something like a brush hog? Thanks for educating me. Bill B