Had a trial of a "Janz" Clearfield wheat on our place last year. The planting was very late but was an interesting comparison none the less. The trial involved strait Janz, clearfield janz and the Hartog wheat we had planting in the rest of the field. I haven't seen the plot harvester results, but I went in afterward and cleaned up with our machine and really couldn't pick up any yeild loss between the clearfield and the non varieties. Belive it or not, despite being planted in early August (normally early May) the Janz seemed to even hold it's own and came in for harvest at a similar time to the Hartog.