Schweizer 1-26 question

Jim had 10 diamond distance flights in his 1-26. One flight exceeded 400 miles. Two ended in Indiana. All originated from the upper Midwest, most from Minneapolis MN area. There was one that started in North Dakota basically at the Canadian border and ended near Minneapolis. Following Cold Fronts in the spring.

There have been many (but not recently)Diamond Distance 1-26 flights flown northbound from Texas/NM, presumably along the dry line. I guess that is an atmospheric ridge...

The 1-26 Association website lists all known Diamond Distance and 400+ mile flights in the achievements section. www.126association.org