Hi Richard,
Most of the teeth have to go down, when you have a blade with reverse teeth they go at the bottom. Most blades have a burr on the right side. To stay on the line you have to move the wood some degree to the right. There are a few blades which don't have much of a burr, one of them is the Ultra Reverse. It cut more straight.
One more thing to think about. Have good tension, the blade should not move sideways more then 1/8", have good speed and don't push too hard into the blade, or the blade will start cutting with a bevel. Let the blade do the cutting.
FD Mike