Florida recruiter and Cyclones defensive backs coach Troy Douglas swung by the school and an in-home visit recently with Preston, who the Cyclones have offered.
Over the weekend, Preston was in Ames for an official visit.
"He liked it, really liked the visit," Jensen Beach head coach Tim Caffey told AllCyclones.com on Monday. "Liked the atmosphere.
"He'll still take his visits and things of that nature."
Preston committed to West Virginia in November but Caffey has advised him to let his recruitment play out and continue checking out other schools.
"Like any other student-athlete, I've told him to make sure that's where he wants to go," Caffey said. "Don't just shut yourself off with WVU. Make sure you've explored all your options.
"He's the type of kid that's true to his word but things can happen, you just never know. It's best for him, as a kid who has not spent much time outside Florida, to go out and look."
Preston will visit North Carolina State in late January and hopes to see UCF as well.
The 6-foot-2, 210-pound outside linebacker also has offers from Illinois, Louisville, Rutgers and Wake Forest.