[63corvette]

I can tell you from a bad experience the insurance coverage you pay for each time is like trying to get blood out of a turnip.
They won't pay and want more documentation each time a claim/bill is submitted. Just a stall.
It is a nightmare which lasted almost 2 years for me.
Oh by the way those bills can only be submitted after your personal insurance has paid all they will. And you must file documentation that your insurance has paid all they will. Every tried to get something like that from an insurance company?
A check with some of NHRA's employees and I found the extra insurance fees on each entry for the national event is for coverage for the entire event for everyone attending spectators included. In other words the sportsman racers who pay the insurance fees for the pro's and spectators and anyone who attends the event.
Seems fair right.
Just pray you never need to use it.
My 2 Cents from having been there in that nightmare.