I love the new a5 but it doesn’t fit me at all. I would go and shoulder a bunch and see which one fits you naturally. Gas or inertia doesn’t matter if you can’t shoot it. Also with today’s loads now days I’d seriously consider a 20. If you can shoot well it’s all you need and more pleasurable after a long day from a weight and recoil standpoint. My boys both shoot 20s and kill csnvasbacks at 30-40 yards and have killed several geese. In my opinion those are about the 2 hardest critters to knock down with a shotgun and the 20 wil do it all day with proper shooting.
I agree 100% I also shoot a 20 for most anything. I will say having to buy bismuth to get that performance kinda takes the fun out a little. Buying 45$+ per box while seeing the 12 gauge for 25-35$ range.