Man, used to motor pace Dorais, some of those cracks have been in it since the late 80's had to know your line well at speed
. Used to be a spring ritual filling them in and cleaning up the infield.
Related to the grass track topic a track laid out like this was a great way to start. Very modest banking and narrow. The visual at the top of the track and moving up/down the banking was not intimidating at all for new riders. Yet spend a season on it and you are comfortable anywhere.
I think there is a place for this sort of layout for casual racers and it would potentially transition more riders into the sport from Road, CX, BMX etc.