Nelson tripped to CU over the Oct. 7 weekend.
"The coaches are real cool, it's a real nice area, a perfect college town," he said, adding that he was also impressed with CU's business school as that's what he intends to study.
Nelson has good size at 6-2, 230 pounds, as well as surprising speed. However, even though Saddleback plays out of a shotgun spread offense, Nelson is more a drop-back passer than a dual-threat. He's completed 62 percent of his passes (81 of 130) and thrown for 1,239 yards, while leading Saddleback to a 6-0 record. He's thrown 10 touchdown passes and just one interception.
"We're just clicking right now," Nelson said. "We've got the top scoring offense (in our league) and are allowing the least amount of points."
While on his trip, Nelson spent time with CU offensive coordinator and quarterbacks coach Mark Helfrich.
"He's a cool guy," Nelson said. "We clicked pretty well.
"I got a pretty good sense of what they're wanting to do there (on offense)," Nelson continued.
That includes what CU will try and do once dual-threat QB Bernard Jackson graduates after next season and CU's quarterback won't be called on to run as much as Jackson has. "That's why I chose to go there. They run the same offense I ran in high school," Nelson said.
Nelson played high school football at Tesoro High in California, and was teammates with current Buff Scott McKnight there.