| Have a Sub 9 and like it.
Haven't played with a sub 2000, but I picked up a used sub 9 (takes SW59 Mags), which is the same only has a steel flat sided receiver instead of the ribbed polymer. I really like it, and the ergonomics IMO are fine for what it is. The thing I like best about the sub 9 is the ease of deployment and portability. It will easily fit in a large backpack folded and if you leave a loaded clip in it you can be ready to fire in under five seconds from a folded position with a little practice. Also when folded most of the inner workings aren't exposed for foreign stuff to get into.. very nice design. At about 80 yds. I was pretty much emptying a clip into about a paper plate sized area standing / leaning against a tree without much effort. The SU16 on the other hand is a Rifle shooting Rifle ammunition. Not in the same class at all. The Cons on it are it's more difficult to deploy (pull pin, unfold, pin stock, put clip in), and when folded both the trigger group and bottom of bolt are open to dirt etc., while the pro's are much more powerful, more accurate, better ergonomics, ability to mount optics, and of course the forgrip deploying into a bipod. At any rate I really like both, but for different reasons and purposes.
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