[Mike Taylor 3601]

Your seal is good for the rest of season as long as left intact.
You can only set one record @ a double because there is only one qualifing run on second day,so no run to back up,has to be during qualifing.
I like tear down on Friday because when going through teardown,if there is something that is'nt just right you have chance to correct it,and most of time you can make test-n-tune run that evening and know you are ready for record runs.
You can change classes from one day to the next,just no record second day.
If a race had 2 qualifing passes on second day then I'm sure you could set record that day also,but always have 1 pass on second day.
Mike Taylor 3601