I am considering purchasing an XUV 550 s4 Gator but I am concerned the 16 hp engine may not pull 4 people comfortably on uphill trails. I don't need to go fast but just want to move steadily up the trail without having to charge and gun the engine to make it up. Can anyone PLEASE tell me if they have experience with this issue and if the 550 s4 did the job? Desperate to make a decision soon!! THANKS!!!!!!