The important thing is (if possible) shoulder the guns, try in different positions (sitting/leaning against something with it resting on your knee, etc.) If it fits comfortably, it makes it to the next round of the selection process, after that I just go to reviews on the reliability (which I can’t say I have first hand for either of these models.) I had to sit still with my gun shouldered for what felt like a thousand hours this year, a bird was about 5 feet from me, spooked, as my decoy had blown around and was facing us. Goodluck!