"He told me not to worry about too much and that if I keep doing what I'm doing in camps, everything will work out," Jackson said. "He said I have a stronger arm than he did in high school. If I keep working, everything will work out."
The 6-foot-4, 196-pound rising senior still is on the search for his first offer and left East Lansing on Sunday with a lot of confidence after receiving praise from Cook and coaches.
"He was teaching me little things like putting more touch on the ball instead of throwing it hard," Jackson said. "He said I have a lot of upside and that I'll be great in college.
"Coach (Mark) Dantonio talked to me during the camp and after the camp. He gave me good feedback and said that he liked everything that he saw and said I've gotten bigger and he's watched my highlights a couple times. He really liked my improvement. Coach (Brad) Salem gave me good feedback also."
Good feedback has been a theme this spring for Jackson, who has seen plenty of MAC schools coming through Mona Shores to see him throw. Miami (Ohio), Ball State, Eastern Michigan, Ohio, Kent State and Buffalo were among the colleges visiting, and the first three have been talking offer.
"I am very high on Ball State's list, so I am going to camp there on Monday," Jackson said. "If everything goes well, I am hoping for an offer from there.
"Eastern has been talking to me everyday for the past month, so I just have to camp there for the next month and everything should be good.
"I am getting interest from Miami and they want me to camp, but I don't know if I will be able to go."
As he waits, though, Jackson is working more and more with his teammates to look to get Mona Shores to the playoffs for the second time in school history – with the first being last year.
"I've just been in the weight room with my teammates, doing a lot of footwork and a lot of throwing," he said.