If you have some dust or dirt use Jack the Gripper. Apply lightly and leave it on as long as possible. If you need more grip 15 minutes after the Jack, coat with white, runny sun block like Coppertone 30. If your track is clean, try Paragon Ground Effects about 20 minutes and adjust shorter or longer as needed. Use the least amount of coating and least time that will get you the results you want. Be sure you wipe them off well before you run.