the reason they look like that, is because jerry has the weird idea that repeating identical efforts is 'normal' for a racehorse, while deviation from one race to the next is 'abnormal'.
you can see this attitude in his constant harping on his peter pan #'s.

he likes to say that horses do strange things, but groups of horses don't'.
for the moment, just overlook the offensive inaccuracy in that --- the point is, groups of horses pairing up WOULD BE strange, but he feels it's the norm.

next, you might not make figures, but you may have read jerry's methodology on this board.
when I came here, I had no idea how he made his #'s, and had no real opinion on them.
but, apparently, he adjusts the variant for each race until it fits his projection of what 'horses SHOULD run', and we already know what that is.

the result is what you see.

as a sidenote, what he does in the process of making numbers is almost identical to day to day handicapping.
he looks at each race individually, and projects a number for the horses in each, based on his own judgement.
in the real world, when he takes these projections to the windows, there's a teller there to tell him that he's wrong.
when he's making numbers in his secret laboratory there're no tellers around to comment.