Actually let's clear something up about Volcano's capacity, particularly right before it closed. For those of you that do not know, I was a Ride Operator and eventually a Team Lead at Kings Dominion from the 2016 to the 2018 season, leaving mid summer 2018. My assigned ride location was Volcano/Scrambler, but I was know to float all over Safari Village (except Flight of Fear) and Neptune in Planet Snoopy. With that out of the way...
Volcano ran 2 trains with 16 seats. If you absolutely pushed Volcano to the max, dispatching a train every time the block system would allow, you can get a max of 43 trains in 1 hour. That would be a paltry 688 pph max. Volcano did that exactly once for one hour the entire time I was there. With a good crew, you could expect to get about 30-35 cycles an hour. That would reduce capacity to 480-560 pph. Now if you rode Volcano in her last years you'd know that the last two rows were perpetually closed. Maintenance tried many times to get the old girl to run full trains but she wasn't having it. Anyways that would bring capacity down to 360-420 pph.
If you compare those numbers to the boiler plate capacity for
Thunderbird at Holiday World, you'd see that it's not even close. Thunderbird has 2 trains with 20 seats, with a stated hourly capacity of 1,140 pph. That would make it 57 cycles an hour. That is a 65% increase over Volcano at her best, and a 171-216% increase at her average. There are literally shuttle coasters with higher capacity. Hell, a good operator could do better at Scrambler by themselves. Equating any coaster's capacity to be anywhere near Volcano's is laughable at best, and disingenuous at worst.