At this point I have used the Assos Mille GT and the LeCol Pro bib. Both are fairly comparable. The Lecol’s Medium seems to have a tighter fit than the Assos. Lecol’s had a thicker foam.
Overall I had just switched this winter to using the Assos which are very nice. Saw various posts on the Le Col and tried them after using one of the strava discounts. I have no trouble with Either…both are great.