I have a weak spot for Shimano 1050. The Quadra had a full 1050 gruppo as standard and I think the Triathlon too. Maybe cos it was dreambike for me as a teenager (forget Super Record or Dura Ace, that was fantasy land unobtainium). It was a quantum leap in gruppos, esp those aimed at the regular Joe or Joanne. First Shimano gruppo with the SLR brakes and levers IIRC (google says it was DA7402 but that was either same time or later than 1050 I think). I have two bikes with it still and its jewel like, still shifts beautifully. The only downer is the Uniglide freehub...6sp uniglide cassettes are as rare as honest politicians.