[JumpCrisscross]

> racing against the clock has marginal utility

It has the same utility as in the opening cross, the most algorithmically-trafficked moments of trading after the closing cross. The last order can incorporate more information than an earlier one. Given the book is assembled transparently, that means an order submitted close to the deadline can “see” other orders in a way they couldn’t “see” it.

[sdwr]

> blind one trade per-minute granularity

"Blind" meaning that no orders can "see" each other.