I have not pitted the two guns side by side and I have had the 24 longer than the 35, and have shot it a lot more.  That said, I suspect my 24 is slightly more accurate than my 35.  But take that with a large grain of salt.  One of these days I have to do a real test and see how they compare!

Re: eyesight.  Yep, you're probably good for two or three years minimum, maybe as much as ten.  It usually hits people around their mid-40s.  If you are a handgunner especially your tastes insights will probably start to change as your vision does.  We tend to discuss this a lot around here as we have a large contingent of fellas with older eyes.