Growing up I listened to the "commercial" Grand Funk. it wasn't until later that I got into the first few GFR albums. There was a very distinct difference in Mark's style and overall sound from the first few albums to say the "American Band" album. I couldn't get over how bad, sloppy and sometimes weird tuning he had on those albums. He's a good player even now, but listening back to those first few albums, I wonder what other players thought of him. How many of you were influenced by his style ?