Would using a FFC load through a shotgun barrel with a modified choke tube significantly degrade pattern quality?
As I recall, the FFC loads are designed for cylinder or improved cylinder choked shotguns.
Long ago, before FFC was invented, I patterned a lot of buckshot loads. The tightest/most uniform patterns were with a modified tube, at least in my 11-87 barrel.
If one wanted to primarily use FFC but optimize for off brand loads, will the extra choke interfere with the FFC wad's action?
Of course accuracy with slug loads would have to be considered too...