RE: Ithaca Mag 10
I once owned an Ithaca Mag 10 - 32" full choke back in the days when you could use lead for waterfowl. Never any problems with it but sold it. Later bought a Rem. SP-10, with 28" Rem choke. Again no problems. This was basically the same gun with a few minor changes in the gas system. I sold this one too.
My current waterfowler is a Remington 870 Express Super Mag. 12 ga 3 1/2". It is a work horse of a shotgun.