The newer powders certainly help, but I've heard the South American shells are not necessarily top notch.
The 1100 is a natural pointer, and most folks shoot one well. The best thing you can do is get a good aftermarket trigger group.
I've had several and am now down to 3, all 12 gauge guns from the 70's with the diamond in the pistol grip. They were simply better made then.
A Remington skeet gun is a hoot, and a reminder of days past when not every guy could afford the best equipment. That gun did a lot for the sport even with it's obvious limitations.
There are simply better choices now, and I would not go near a .410
