I would go with the long or extended and then adjust your shells according to what you are hunting for... I use the extended high flyer for everything but when duck hunting I down size my shell and shot size..When goose hunting in the fields in late fall I use the 3.5"BBB or the dead coyote but always keep one of my shell bags in my layout filled with 3" 4's and 2's for when the big flock of Green Heads accidently appear... Take em...