International Harvester, my advise echos that of the others - no need for 3.5" shells. I have both 3" and 3.5" shotguns, I used 3.5" shells for a few seasons and didn't think the additional recoil and costs were worth the additional pellets. I went back to 3" and haven't regretted it. All the shotguns you listed are nice guns and will work great. Something to keep in mind if you plan on doing any target shooting is that some 3.5" shotguns won't cycle the lighter target loads very well.