I recently had a great time searching the archives for the autograph show featuring the 1975 Red Sox. I've done quite a few searches for the more popular players like Jim Rice, Fred Lynn, Luis Tiant, etc., but it's the lesser known players that I really get a kick out of finding a nice image of. For example, I came across a nice shot of Bob Montgomery at bat in his last season (1979). It reminded me that he was the last active player that Major League Baseball allowed to bat without wearing a batting helmet.
At the signing I asked Denny to inscribe the phrase "I Heard Go" on the photo. Mr. Doyle politely declined, and said to me "I wish we had more time to discuss and debate the truth behind this event." He proceeded to write "GO" in bold letters below his signature on the photo. I take this as an indication of his strong belief that GO was the message relayed to him that night and the mistake was made by Zimmer (but we'll never know).