Yup^ 2 strokes run best when they are a little too lean and risk heat seizure. The ones looking for that "perfect" spot are the ones who end up on side of the road dead. I always jet that perfect spot plus 1 number or 2 richer. So I lost 1mph or maybe 2. But my kits last 20 years and counting. And i am never not at or near the front of the ride.