Harper was recruiting to Kentucky Wesleyan and now gets to recruit to WKU. It's not apples to apples comparisons. With that said his recruiting isn't really that suspect. He discovered Derek Gordon who's at UMass now before any of the big boys did. He got Gordon to commit as a SO and then he blew up, became a 4* and major programs came after him. But the relationship he built with him paid off and Gordon signed and enrolled at WKU were he was the leading scorer his freshman season. He also discovered Cezar Guerrero a 4* PG that ultimately signed with Ok State after being committed to WKU for over a year. Harper was one of the first coaches in on Chane Behanan too. To even get a 5* like Behanan to look twice at a school like WKU says a lot about Harper's abilities.
All the Pearl lovers out there may want to cover your eyes, but Harper was something like 13-4 vs Pearl with multiple conference championships while competing in the same conference. I believe Pearl was 0-? in conference finals vs Harper.