Most of it's been said, but I'm going to add some more. Based on my experience with one of the older, non adjustable power bolt action 400's, the Cyclone will give more shots on less air, and is a little bit more consistent. The price for that is slightly lower power, my .177 Cyclone did 21 fpe with CPH's, and the S400 did 23. The magazines on the Cyclone are pretty foolproof, and quite a bit cheaper than the 410. I've heard that some have had problems with the 410 mags. If you happen to be a south paw, the Cyclone's "bolt" can be pretty easily reversed, making it much more friendly. And finally, for a hunter, I'd strongly recommend the Cyclone synthetic stock. It's light, tough, and very comfortable. Add a nice compact scope like the Burris Timberline and you've got one hell of a hunter.
One more thing, getting back to your original statement of wanting very fast follow up shots. Have you looked at the Evanix Renegade? If not, go check out my review on it in the Product Reviews. Other than noise level, I'd put it on par with the AA for quality, and it's a much faster shooting rifle than either the 410 or Cyclone. It's also a little more powerful, my carbine is doing just under 40 fpe, but because of that, the shot count is much lower. My Cyclone was good for 60 shots on a fill, although I usually kept it to 40, the Renegade is only good for 20-30. And for the icing on the cake, it costs half (or less) what the other two sell for. If you haven't totally made up your mind, you might want to give it a look. Later.
Dave