I'm thinking of his Blueprint-era stuff, in which he admitted Heart of The City, et. al were soul samples like the RZA did. I forget the technique. Slow Jams off of his first was also a sped up soul sample.
I just remember reading an interview where he said his early stuff was straight RZA. I could be wrong, though. Hip hop production is not an area I'm expert in.
Speaking of which, on a personal note, I own Blueprint on vinyl. It still sounds great, seventeen years later. Hola Hovito by Timbaland might be my favorite production work on the whole album, an album Kanye was ever-present on.