Belt sanders by definition try to run away from you when you work. Maybe a lighter grit paper on you current belt sander?. I have found , I havent used a belt sander in years. They are typically for heavy stock removal and require a very light touch to use. A good quality, ROS (Random orbit sander) is all I ever use anymore. Many here are addicted to the Festool models that I suspect ARE wonderful but expensive. I have heard they are great for heavy stock removal as well as fine finishing. So, that maybe something to persue depending on your budget and needs. I have been a fan of the Boschs for years.