I have not yet seen a cross10 run but I do have the Shark9 which is basically the same engine except the Shark9 has a balanced crank and the Cross10 does not have the balanced crank. My Shark is starting to run great and getting much better mileage as well, pitting at 8 minutes I only needed 80CC's to fill the tank so 10 minute stops should be no problem now that it's fully broken in.