I bought a G9983 15" belt sander that another carpenter had purchased but never set up so it is actually brand new and paid significantly less than new price. I have been working on it all day and was running some short ends 30" of oak through it to make the final adjustments and that is where the trouble began. I noticed that on the tail end of the board that there is a bit of snipe about 3" from the end no matter which board or direction of travel. I am out of ideas for resolving this problem, any ideas?? I have checked and adjusted the pressure rollers and they are within specs below the sanding rollers. I am currently running the platen even with the sanding rollers per spec for finish sanding. I have tried adjusting the pressure roller tension on the rear roller both more and less and tried adjusting the front roller also just out of curiosity. When adjusting the roller tension I moved the adjustment nut about and 1/8" either way of factory set. Do I need to make a larger adjustment to get a better satisfactory finish? Just not sure what step to take next. Any help would be appreciated.