Well done. Cut corn is my favorite method of goose hunting by far. And most successful of course. Regarding opposing groups in the same field, I have had it happen a few times, usually with good results. There has been an occasion or two where the resulting group was too big for comfortably hiding amongst the dekes so we split the groups. Calling etiquette is VERY important in times like that. On the other hand, once we separated groups because of egos. A young caller didn't want to relinquish the shot calling mantle to an old guy. By tradition, the senior caller sets the pace and calls the shot. That young pup called til I thought his lungs were gonna fall out! He got more birds that day but, us old guys got all the bands.