Some of the feelings, Armstrong said with a smile, were almost a little too familiar.

“I walked through the academic building. Still feel like I should be going to school right now,” Armstrong said. “Just feel at home, you know? That’s my boys. My family.”

Armstrong wasn’t in fact back to finish the last three semesters of his degree — “My mom’s not letting me go without it,” Armstrong noted, “I’ll end up getting it for sure” — but rather to take part in KU football’s Pro Day. The event provided an opportunity for Armstrong and several other Jayhawks to showcase their talent in front of scouts from at least 19 NFL teams — and in Armstrong’s case, show improvement from the NFL combine.

At the combine, Armstrong did 20 bench-press reps, while his vertical jump was measured at 30 inches. After having his 7-foot-plus wingspan measured on Tuesday, Armstrong bested both of those scores, reaching 33 inches with his vertical and powering his way through 25 bench-press reps.

“To be honest, I think I could’ve improved in everything,” Armstrong said. “I had beat (all my numbers) I put up at the combine when I was training.”

While Armstrong didn’t hit his personal markers with the standing broad jump (9’5″) or his 40 time (4.88 seconds), he earned positive feedback for how he went through the outdoor drills.

One NFL scout told the Journal-World that it was promising for Armstrong to get into the ideal 33-38 inch range on his vertical for edge rushers.

The scout noted that while most of the actual scouting process comes from film, it was nice to see “how explosive” Armstrong and others were in person.

As for the other participants, tight end Ben Johnson matched Armstrong’s vertical at 33 inches while offensive linemen Zach Hannon and Jayson Rhodes each powered their way to 21 bench-press reps.

Johnson also had the longest broad jump at 9’6″, followed closely behind by Armstrong and then punter Cole Moos (9’3″), who also came within .02 seconds of Armstrong’s 40 time.

“He’s actually pretty fast to be a punter,” chimed in a familiar face. Back from Boise State, Montell Cozart was measured at KU’s pro-day and then threw passes out to Johnson, marking his first time back in Lawrence since graduating last spring.

“Once I got the call,” Cozart said of returning to KU, “I told ’em, ‘No doubt.'”

After hanging out with his former teammates the night before, Cozart was mobbed by some of them as he stepped foot in the facility. Daniel Wise, Joe Dineen Jr. and Steven Sims were all there to watch the practices, among other players.

Cozart will have another Pro Day in a week at Boise State. While he threw in sub-40-degree weather on Tuesday, he said he was hopeful for a little bit of change when he returned back to Idaho.

“I’m hoping it’s indoors,” he joked. “It should be.”

Armstrong is not listed as a first-round selection in recent mock drafts by ESPN, NFL.com and CBS. A recent mock from USA Today’s Luke Easterling has him slated as a fourth-round selection to the Jets, while Bleacher Report’s Matt Miller put Armstrong as a late-second round pick — 57th overall — to the Titans.

One way or another, it doesn’t seem Armstrong is spending much time worrying about it.

“Zero. Zero,” Armstrong said. “I know my name’s not where it should be right now, so I don’t look at it.”