I had a neck surgery in 2018 that left my arms weak. I'm right handed and my right arm is worse and shoulder is losing all muscle. I want to go light, 20 gauge, and probably semi auto. I like the Weaterby 459 but right now cant find one. What do you guys recommend and why. Remember, think light and compact. Any other points, I'm open for opinions and comments. Thanks for your help all....