I shot a 5 stand round with RST 20ga spreaders in a Boss hammer gun which is tightly choked. They worked fine and maybe I broke some I wouldn't have otherwise. I have never hunted using them but that will change this fall as I have 2 16's that are choked IC/F.
I don't see why spreaders would be hard to fool with like Larry said just drop then in.
Me an elitest
That's the funniest thing I've heard today (then again I haven't been out much today) I just believe that with todays loads we don't need to open the chokes on a fine old gun be it a Parker, Fox, Lefever or Smith. Would you take a Pre64 M70 in say 257 Roberts and rechamber it to say 257 Weatherby or a 270?