The 4 events bit only applies to bringing your points results to your class. You can run novice in every event, or you can go straight to STU or TBSP if you want. If you run TBSP you'd have zero chance of finishing in the points (thank QKSUBI and MattR for that) but you would have the benefit of 2 very fast drivers in very fast cars in your run group who can help you out tremendously. Or, you can run STU by yourself, get that first jacket out of the way, and still pick their brains since it's the same run group.
