Stan, I heard my name. Thanks. I do shoot a lot of .410 and use tight chokes on all live birds. In fact I just use tight chokes on everything these days. My clay scores are not bothered by a miss here and there and tight chokes work well with my style of shooting. IM and Full, mostly Full are my go to choices for .410 use on all live birds. But what one maker calls Full is often another's IM. When I was shooting a lot of Skeet I used .012 and .015 as my regular chokes,

As you know, I try to get all conditions in my favor, whenever I can. Distance determination is very important to how I shoot. Most shooters are bad at that one key skill. And with the .410 knowing the difference between 25, 30 and 35 yards is everything. As a general rule I limit my shots to 31-33 yards as a outside limit but like them to be between 21-31 yards. But at that end range, being off just a bit means a difference of a foot plus lead. That matters when your pattern is effectively 16-18". With a 12 gauge, a foot is nothing the pattern does not help correct. The .410 has no margin for error which is why it is so hard to become proficient and even harder to become consistent with a .410. I put that skill right behind understanding my wife and understanding why it is Global Warming which I am shoveling.

Keep well Stan, hope your Spring comes early, with gentle rains only at night, so you can keep planting going.