I guess you missed my point here! They can build tires to run more then one race! And be just as fast the second time around! Now they build tires for time trails and heats - semi and then the feature! Too many compounds!!!!!!!!!!!!! Build one for the left side and one for the right side! Today just like nascar you can sell them junk and they will say the tire cut down! They have no competition! In my days with firestone we loved to kick goodyears ass! I remeber the usac twin 50's at the indy mile one night aj foyt was on new goodyears and after hot laps! Drove to my van and told his guys to get this f-in tires off and put on what duke says! He beat pancho in both races! Pancho had the same white dot 16's! And run 2nd. Same rr in both races!