Seems to work in trans am with 200k plus cars who abuse their tires far more than we do... We just need to eliminate the marking as it is asks a lot of the volunteers, very time consuming. Which is why I propose the stickers, It takes all of the extra time and man power out of the equation.
Pasted from Trans Am rules
12.7.1: All cars must compete on Pirelli tires as listed in the current year Pirelli Racing Tire, TRANS-AM SERIES - DIMENSIONAL DATA & PRICING product guide This applies to all official practice, qualifying and race sessions. The product guide is available from the Trans Am TECHNICAL DIRECTOR, or at gotransam.com. Tires must be ordered through the Trans Am series tire ordering process.
12.7.2: Soaking or chemical treating of the tires is prohibited. Tire samples may be taken and sent to a lab for analysis. Tire warmers (or any other method of preheating tires) are prohibited. Modification to tires, by grooving, siping, or any other means, is not permitted. Rubber buildup (clag) May be scraped from the tire’s surface. The minimum fine for soaking, chemical treating or modifying tires in any way is $5000 (USD).
12.7.3: Teams shall leave tires used for qualifying, and/or the race, mounted on the car until the car has cleared post-session technical inspection, or until the car is cleared by a Trans Am Pit Lane Official, to return from the pit lane to the paddock. 12.7.4: Trans Am Technical Staff will mark four dry tires (slicks) per car prior to qualifying. The marking must remain visible throughout the event. The TECHNICAL DIRECTOR will specify one, or more, periods of time on the official event schedule when all teams must have their tires prepared to be marked at their paddock. Teams not being prepared to have their tires marked during the specified time may be penalized.
12.7.5: All cars shall start the race on the same set of marked dry tires that they qualified on, or on the set of dry tires the team had marked prior to qualifying if rain tires (treaded) were used in the qualifying session.
12.7.6: Teams may change one dry tire, any time after qualifying begins, without penalty. The TECHNICAL DIRECTOR must be notified.
12.7.7: If a team changes more than one marked, dry tire once the qualifying session begins, that car will lose all qualifying times. If the team notifies the TECHNICAL DIRECTOR of this change in time to have the grid sheets corrected and reprinted, the car may start at the back of the grid for its class. If a car presents on the pre-grid with more than one unmarked tire, without informing the TECHNICAL DIRECTOR properly, the car must start the race from the pit lane after the field passes. NOTE: in a “split start” situation, every attempt will be made to release a car from the pit lane after his class/group receives the green if it can be done in a safe manner.
12.7.8: Any number of damaged tires may be changed per pit stop during the race without penalty. A Trans Am pit lane official must verify the damage. Only one undamaged tire may be changed during a pit stop without penalty.
12.7.9: A decision to use rain tires is made by the crew chief for each car. If the crew chief decides to use rain tires in all or a part of qualifying, but not in the race, the car shall start the race on the set of 4 dry tires that were marked prior to qualifying. If the crew chief decides to use the 4 marked dry tires in qualifying, but not in the race, the car may start on any set of rain tires, new or used. If the crew chief decides to use rain tires in both qualifying and the race, any combination of rain tires, new or used, may be used.