It sucked for the guys who didn’t qualify well putting them in the C-main which was a 6 lap race that only transferred four. If you did’t make it you were done for the night before they even ran heat races. The current way at least allows everyone to run a heat and a feature.
I’d prefer 5 heats, transfer 4. Take 4 from the B and no provisionals during sprint week. Start 24 each night. The 5 heat format starts 6 more cars ahead of the top qualifiers in the heats and gives them a better chance to make the show therefore more encouraging to show up. Same reason they should do 4 heats with 28 or more, not 31.