I'm new to this party, but I've been reading this blog for a while
I just bought a used 3500 last month, it came with everything except the original box and the magazine plug. The 4 chokes it comes with now are full, modified, turkey and in the barrel is IC - no skeet choke these days. I was interested in the magazine capacity since I figured it couldn't just be a constant 4 shells of any size so I found the magazine will hold 3 3½", 4 3", and 5 2¾".
I also tried some 2" low pressure shell (Polywad Vintagers) that held .8 oz of shot - these low pressure shells will cycle the action, but when I loaded one in the magazine behind a 2 ¾", it jammed because 2 shells came out of the magazine onto the whachamacallit that lifts the next shell to be pushed into the chamber. Not a problem because I was never going to shoot these, I just wanted to see what they would do.
So I got this gun for $500 and the guy said he had only shot it twice, I've been shooting it a couple of times a week and it shoots so well that it makes me think I may have a future in clay shooting. I got the 28" barrell because of a recommendation of a range instructor, but I decided to get the cheaper Stoeger instead of the Beretta or Benelli that he recommended.
The gun was uncleaned when I bought it and it remains that way. I'm pretty OCD/anal about cleaning a firearm as soon as I get home from shooting it, but most of my other guns only get shot once every couple of years so they get cleaned and put away. This shotgun is getting fired a couple of times a week and pretty much lives in my car trunk. Also the fact that it is a plain Jane all black cheap appearing gun helps me put it in its case dirty and forget about it. If it had a beautiful wood stock and a gorgeous blued barrel, I might not be able to abuse it like this. Also if i had paid a grand more for the gun I would probably feel an obligation to take better care of it, so I am extremely happy with with a cheap gun that has cycled every load I put through it and hit more clays that I thought I was capable of.