I am going to attempt to clarify the tire compound change rule for us here in regards to different race strategies.
- starting on SM tires - SS tires for the duration of the race
- starting on SS tires - SM tires - SS tires till the end of the race
- starting on SS tires - SM tires at the end of the race
- 1) Starting on Medium Sports tires Then running the race on Soft Sports tires for the rest of the race:
In this strategy you Will have to run 6 COMPLETE laps and then pit in on THE NEXT lap or later to be within the regulations.
Since your in lap doesn’t count You WILL have to run a total of 7 laps on SM tires.
This is the easiest strategy to run but it is one of the slowest, as it requires you to run SM tires with on a FULL tank of fuel.
2) Starting on Sports Softs then running a middle stint on Sports Mediums switching to Sports Softs for the final dash to the end of the race:
This strategy your pit out lap AND pit in lap would not count! Therefore you WILL have to change your tires to Medium Sports then run an out lap, continue on with 6 more COMPLETE laps AND then pit on the following lap.
You WILL have to run a total of 8 Laps on Medium Sports tires.
To make this strategy successful you must only fall off of your lap times by a mere 1-1.5 sec at the end of the 8th lap on Medium tires or you will be at a DISADVANTAGE to the rest of the strategies
3) Starting on Sports Softs and then Finishing on Medium Sports tires:
You will have to change from SS to SM then run an out lap AND THEN run 6 COMPLETE laps to end the race on!
Since your out lap does not count you will have to only run 7 laps total on SM tires.
HOWEVER you WILL have to calculate how much time you will need including the pit stop, tire change the out lap and the following 6 COMPLETE laps will take you! THEN You Would pit according to the corresponding time left in the race to finish the race with 6 COMPLETE LAPS on SM tires to satisfy the race regulations.
This strategy requires a bit of math to accomplish, however if done correctly, it is the fastest strategies available to us as it requires the least amount of fuel to run on the SM tires.
I hope this clarifies things a bit more for all of us moving forward with the rest of the season.