Good posts above - let me add:
I think it depends on what you are trying to accomplish.
A lot of times, tires are scuffed months ahead of time, then internal prepped as you get closer to race day (10-14 days out.)
Different internals need differing amounts of cure time as well.
...Are you wanting to break down the sidewalls, soften the tire, toughen the tire, just add oil to the tire, put a heat cycle in the tire, etc.
Occasionally the track doesn't bite up enough to put a heat cycle through the tire and that changes your plans.
No doubt, the advantage of experience is on the side of the veterans and those with an arsenal of tires to choose from. They'll be prepared better than your average racers because they know from experience what to expect from a track, and even when the weather throws a curve ball, they'll be ready.
I think this is a big reason that you see so many "tire guys" in our industry (in the shop and at the track.)
Everyone that I know on the tire side of things in karting is booked 4-6 weeks back right now, myself included. I could hire 3 men full time this time of year and still not keep up with customer orders. We're trying to fill them 18-20 hours a day 6 days a week and still can't get caught up. It'll slow back down eventually, but right now, it's off the hook!
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Thanks and God bless,
Brian Carlson
Carlson Racing Engines
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