Charlie I rolled some #5s for the 10 ga this morning. If the #2s and 4s are anything to go by I think the 5s should work fairly well in the 8 and 10 ga so I should be covered for most small game and turkey.
For the 8 ga you technically do have 125 species of waterfowl not protected by the migratory bird act which outlawed the 8 gauge for most waterfowl. Finding one of those 125 birds not covered by it though is a different challenge
Some northern states do protect invasive species I still havnt figured out why though.