I have previously posted a note from Andy Hampsten (it's in the archives); he touches on this subject in that note where he says, " Eddy (Merckx) took care of all the riders but few were spoiled with a new frame every week or two like I was. I really liked the 753 tube set, but Eddy knew it was not a long lasting material. He let me use them for the mountainous tours and a few big one day races, and then put them to rest."
Angel Garcia
Long Valley, NJ