There have been at least two other favorable signs for the Red Raiders, of late. One is the improved hitting of offensive workhorse Amanda Dowdy (who has taken roughly one-third of the team's spike attempts this season), as shown in the red bars above. Dowdy injured an ankle in the Baylor match, but showed no ill effects tonight.
Texas Tech also had nine aces against Kansas. I attended an earlier Raider match this season, a three-game loss to Kansas State, where Texas Tech had only one ace. It seems the team is serving a lot more aggressively now, which should make it harder for the opponent to side-out.