I started this string and I am happy to report that I recently found a slightly used 3320 to which I added a 72" auto-connect deck. I just finished my first mowing. What a sweet machine. The deck is much quieter than my old 60" deck. No rattles and very little blade noise. I am in heaven. Ironically, the mowing season is about over. I will be lucky to get one more mowing but I am looking forward to it! I have not taken the deck off yet. Wanted to finish the mowing season in case I screw something up when I try to disconnect.