I’ve used United Seeds Inc out of Omaha Nebraska for years. For us living in the transition zone, they offer more selections of quality tall fescue than Hogan. They also offer a blend of tall fescue with a small percentage of bluegrass which has been a trend lately. Experts never used to recommend seeding tall fescue with bluegrass but now that seems to be changing.You are the 2nd person I have heard mention Hogan. I have a mixed lawn due to crazy sun and shade areas (TF, KBG and a bit of rye) and I had a large bag of Jonathon Green so I used that last week in overseeding. But I think I want to try a higher quality seed next year. Have you used Hogan personally?
They also offer 4th Millenium Tall Fescue which is very highly rated by Rutgers and Purdue. I don’t believe Hogan offers this.