95% that I do is trail riding with the occasional, sand dune, hill climb, mud hole on a factory SS clutch with no mods. 3400 miles with no issues to date. Have a full exhaust and tune for the xtra HPs and better fuel to air mix.
I'd leave it stock, have seen plenty of posts with over 6k and still going strong. I'm almost at 1500 and have no plans of doing anything to it. Have not seen any posts on the 19+ having early clutch issues that weren't self inflicted If you know how to treat your clutch the factory one is all you'll need. .
I upgraded to the Rekluse torque drive clutch. It gets away from the crappy diaphragm spring and goes to a 6 spring clutch (a/o now we have to use the lightest springs provided - which should hold 225+hp, but possible upgrade when a better actuator comes out).