The field that I've been invited to shoot at is sandwiched between a river on one side and a wooded ridge on the other. In the past the birds tend to reconnoiter earlier in the day, flying high from the river to the ridge, so I'll be armed with my Grade 3E Elsie 16 choked IM/F. Later, when the birds get serious about feeding I'll switch to my "laser beam"--- an OE 20 choked IC/M. Can't wait !!!!!