All the coasters have had their trains replaced over the years.
Kumbak slowed operations down by about fifty percent, the slow train docking at offload, heavy, uncomfortable trains, and duff block control means four train ops are not much faster than 2.
I can remember all the coasters with no seatbelts.
Paid cash operations, even ticket operations, were over twice as fast as current ops.
Big One queue was a slow constant shuffle in the early days.
The big changes over the decades...
North park has lost about 90% of its attractions.
South park I can remember as sand dunes, a kid's playground, two trains, two woodies and a pony trail.
That was it.